280441980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{439}}^1$

素因数の和:490

約数の個数: 288

約数和(自身を含む): 1082188800

約数和(自身を除く): 801746820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 169, 180, 182, 189, 195, 210, 234, 252, 260, 270, 273, 315, 338, 351, 364, 378, 390, 420, 439, 455, 468, 507, 540, 546, 585, 630, 676, 702, 756, 780, 819, 845, 878, 910, 945, 1014, 1092, 1170, 1183, 1260, 1317, 1365, 1404, 1521, 1638, 1690, 1755, 1756, 1820, 1890, 2028, 2195, 2340, 2366, 2457, 2535, 2634, 2730, 3042, 3073, 3276, 3380, 3510, 3549, 3780, 3951, 4095, 4390, 4563, 4732, 4914, 5070, 5268, 5460, 5707, 5915, 6084, 6146, 6585, 7020, 7098, 7605, 7902, 8190, 8780, 9126, 9219, 9828, 10140, 10647, 11414, 11830, 11853, 12285, 12292, 13170, 14196, 15210, 15365, 15804, 16380, 17121, 17745, 18252, 18438, 19755, 21294, 22815, 22828, 23660, 23706, 24570, 26340, 27657, 28535, 30420, 30730, 31941, 34242, 35490, 36876, 39510, 39949, 42588, 45630, 46095, 47412, 49140, 51363, 53235, 55314, 57070, 59265, 61460, 63882, 68484, 70980, 74191, 79020, 79898, 82971, 85605, 91260, 92190, 102726, 106470, 110628, 114140, 118530, 119847, 127764, 138285, 148382, 154089, 159705, 159796, 165942, 171210, 184380, 199745, 205452, 212940, 222573, 237060, 239694, 256815, 276570, 296764, 308178, 319410, 331884, 342420, 359541, 370955, 399490, 414855, 445146, 479388, 513630, 519337, 553140, 599235, 616356, 638820, 667719, 719082, 741910, 770445, 798980, 829710, 890292, 1027260, 1038674, 1078623, 1112865, 1198470, 1335438, 1438164, 1483820, 1540890, 1558011, 1659420, 1797705, 2003157, 2077348, 2157246, 2225730, 2396940, 2596685, 2670876, 3081780, 3116022, 3338595, 3595410, 4006314, 4314492, 4451460, 4674033, 5193370, 5393115, 6232044, 6677190, 7190820, 7790055, 8012628, 9348066, 10015785, 10386740, 10786230, 13354380, 14022099, 15580110, 18696132, 20031570, 21572460, 23370165, 28044198, 31160220, 40063140, 46740330, 56088396, 70110495, 93480660, 140220990, 280441980]

約数ペア:

[(1, 280441980), (2, 140220990), (3, 93480660), (4, 70110495), (5, 56088396), (6, 46740330), (7, 40063140), (9, 31160220), (10, 28044198), (12, 23370165), (13, 21572460), (14, 20031570), (15, 18696132), (18, 15580110), (20, 14022099), (21, 13354380), (26, 10786230), (27, 10386740), (28, 10015785), (30, 9348066), (35, 8012628), (36, 7790055), (39, 7190820), (42, 6677190), (45, 6232044), (52, 5393115), (54, 5193370), (60, 4674033), (63, 4451460), (65, 4314492), (70, 4006314), (78, 3595410), (84, 3338595), (90, 3116022), (91, 3081780), (105, 2670876), (108, 2596685), (117, 2396940), (126, 2225730), (130, 2157246), (135, 2077348), (140, 2003157), (156, 1797705), (169, 1659420), (180, 1558011), (182, 1540890), (189, 1483820), (195, 1438164), (210, 1335438), (234, 1198470), (252, 1112865), (260, 1078623), (270, 1038674), (273, 1027260), (315, 890292), (338, 829710), (351, 798980), (364, 770445), (378, 741910), (390, 719082), (420, 667719), (439, 638820), (455, 616356), (468, 599235), (507, 553140), (540, 519337), (546, 513630), (585, 479388), (630, 445146), (676, 414855), (702, 399490), (756, 370955), (780, 359541), (819, 342420), (845, 331884), (878, 319410), (910, 308178), (945, 296764), (1014, 276570), (1092, 256815), (1170, 239694), (1183, 237060), (1260, 222573), (1317, 212940), (1365, 205452), (1404, 199745), (1521, 184380), (1638, 171210), (1690, 165942), (1755, 159796), (1756, 159705), (1820, 154089), (1890, 148382), (2028, 138285), (2195, 127764), (2340, 119847), (2366, 118530), (2457, 114140), (2535, 110628), (2634, 106470), (2730, 102726), (3042, 92190), (3073, 91260), (3276, 85605), (3380, 82971), (3510, 79898), (3549, 79020), (3780, 74191), (3951, 70980), (4095, 68484), (4390, 63882), (4563, 61460), (4732, 59265), (4914, 57070), (5070, 55314), (5268, 53235), (5460, 51363), (5707, 49140), (5915, 47412), (6084, 46095), (6146, 45630), (6585, 42588), (7020, 39949), (7098, 39510), (7605, 36876), (7902, 35490), (8190, 34242), (8780, 31941), (9126, 30730), (9219, 30420), (9828, 28535), (10140, 27657), (10647, 26340), (11414, 24570), (11830, 23706), (11853, 23660), (12285, 22828), (12292, 22815), (13170, 21294), (14196, 19755), (15210, 18438), (15365, 18252), (15804, 17745), (16380, 17121)]