1780280460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{4889}}^1$

素因数の和:4945

約数の個数: 216

約数和(自身を含む): 6557372640

約数和(自身を除く): 4777092180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 289, 306, 315, 340, 357, 420, 476, 510, 578, 595, 612, 630, 714, 765, 867, 1020, 1071, 1156, 1190, 1260, 1428, 1445, 1530, 1734, 1785, 2023, 2142, 2380, 2601, 2890, 3060, 3468, 3570, 4046, 4284, 4335, 4889, 5202, 5355, 5780, 6069, 7140, 8092, 8670, 9778, 10115, 10404, 10710, 12138, 13005, 14667, 17340, 18207, 19556, 20230, 21420, 24276, 24445, 26010, 29334, 30345, 34223, 36414, 40460, 44001, 48890, 52020, 58668, 60690, 68446, 72828, 73335, 83113, 88002, 91035, 97780, 102669, 121380, 136892, 146670, 166226, 171115, 176004, 182070, 205338, 220005, 249339, 293340, 308007, 332452, 342230, 364140, 410676, 415565, 440010, 498678, 513345, 581791, 616014, 684460, 748017, 831130, 880020, 997356, 1026690, 1163582, 1232028, 1246695, 1412921, 1496034, 1540035, 1662260, 1745373, 2053380, 2327164, 2493390, 2825842, 2908955, 2992068, 3080070, 3490746, 3740085, 4238763, 4986780, 5236119, 5651684, 5817910, 6160140, 6981492, 7064605, 7480170, 8477526, 8726865, 9890447, 10472238, 11635820, 12716289, 14129210, 14960340, 16955052, 17453730, 19780894, 20944476, 21193815, 25432578, 26180595, 28258420, 29671341, 34907460, 39561788, 42387630, 49452235, 50865156, 52361190, 59342682, 63581445, 84775260, 89014023, 98904470, 104722380, 118685364, 127162890, 148356705, 178028046, 197808940, 254325780, 296713410, 356056092, 445070115, 593426820, 890140230, 1780280460]

約数ペア:

[(1, 1780280460), (2, 890140230), (3, 593426820), (4, 445070115), (5, 356056092), (6, 296713410), (7, 254325780), (9, 197808940), (10, 178028046), (12, 148356705), (14, 127162890), (15, 118685364), (17, 104722380), (18, 98904470), (20, 89014023), (21, 84775260), (28, 63581445), (30, 59342682), (34, 52361190), (35, 50865156), (36, 49452235), (42, 42387630), (45, 39561788), (51, 34907460), (60, 29671341), (63, 28258420), (68, 26180595), (70, 25432578), (84, 21193815), (85, 20944476), (90, 19780894), (102, 17453730), (105, 16955052), (119, 14960340), (126, 14129210), (140, 12716289), (153, 11635820), (170, 10472238), (180, 9890447), (204, 8726865), (210, 8477526), (238, 7480170), (252, 7064605), (255, 6981492), (289, 6160140), (306, 5817910), (315, 5651684), (340, 5236119), (357, 4986780), (420, 4238763), (476, 3740085), (510, 3490746), (578, 3080070), (595, 2992068), (612, 2908955), (630, 2825842), (714, 2493390), (765, 2327164), (867, 2053380), (1020, 1745373), (1071, 1662260), (1156, 1540035), (1190, 1496034), (1260, 1412921), (1428, 1246695), (1445, 1232028), (1530, 1163582), (1734, 1026690), (1785, 997356), (2023, 880020), (2142, 831130), (2380, 748017), (2601, 684460), (2890, 616014), (3060, 581791), (3468, 513345), (3570, 498678), (4046, 440010), (4284, 415565), (4335, 410676), (4889, 364140), (5202, 342230), (5355, 332452), (5780, 308007), (6069, 293340), (7140, 249339), (8092, 220005), (8670, 205338), (9778, 182070), (10115, 176004), (10404, 171115), (10710, 166226), (12138, 146670), (13005, 136892), (14667, 121380), (17340, 102669), (18207, 97780), (19556, 91035), (20230, 88002), (21420, 83113), (24276, 73335), (24445, 72828), (26010, 68446), (29334, 60690), (30345, 58668), (34223, 52020), (36414, 48890), (40460, 44001)]