19739720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:88

約数の個数: 256

約数和(自身を含む): 65318400

約数和(自身を除く): 45578680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 17, 20, 22, 26, 28, 29, 34, 35, 40, 44, 52, 55, 56, 58, 65, 68, 70, 77, 85, 88, 91, 104, 110, 116, 119, 130, 136, 140, 143, 145, 154, 170, 182, 187, 203, 220, 221, 232, 238, 260, 280, 286, 290, 308, 319, 340, 364, 374, 377, 385, 406, 440, 442, 455, 476, 493, 520, 572, 580, 595, 616, 638, 680, 715, 728, 748, 754, 770, 812, 884, 910, 935, 952, 986, 1001, 1015, 1105, 1144, 1160, 1190, 1276, 1309, 1430, 1496, 1508, 1540, 1547, 1595, 1624, 1768, 1820, 1870, 1885, 1972, 2002, 2030, 2210, 2233, 2380, 2431, 2465, 2552, 2618, 2639, 2860, 3016, 3080, 3094, 3190, 3451, 3640, 3740, 3770, 3944, 4004, 4060, 4147, 4420, 4466, 4760, 4862, 4930, 5005, 5236, 5278, 5423, 5720, 6188, 6380, 6409, 6545, 6902, 7480, 7540, 7735, 8008, 8120, 8294, 8840, 8932, 9724, 9860, 10010, 10472, 10556, 10846, 11165, 12155, 12376, 12760, 12818, 13090, 13195, 13804, 15080, 15470, 16588, 17017, 17255, 17864, 19448, 19720, 20020, 20735, 21112, 21692, 22330, 24310, 25636, 26180, 26390, 27115, 27608, 29029, 30940, 32045, 33176, 34034, 34510, 37961, 40040, 41470, 43384, 44660, 44863, 48620, 51272, 52360, 52780, 54230, 58058, 61880, 64090, 68068, 69020, 70499, 75922, 82940, 85085, 89320, 89726, 97240, 105560, 108460, 116116, 128180, 136136, 138040, 140998, 145145, 151844, 165880, 170170, 179452, 189805, 216920, 224315, 232232, 256360, 281996, 290290, 303688, 340340, 352495, 358904, 379610, 448630, 493493, 563992, 580580, 680680, 704990, 759220, 897260, 986986, 1161160, 1409980, 1518440, 1794520, 1973972, 2467465, 2819960, 3947944, 4934930, 9869860, 19739720]

約数ペア:

[(1, 19739720), (2, 9869860), (4, 4934930), (5, 3947944), (7, 2819960), (8, 2467465), (10, 1973972), (11, 1794520), (13, 1518440), (14, 1409980), (17, 1161160), (20, 986986), (22, 897260), (26, 759220), (28, 704990), (29, 680680), (34, 580580), (35, 563992), (40, 493493), (44, 448630), (52, 379610), (55, 358904), (56, 352495), (58, 340340), (65, 303688), (68, 290290), (70, 281996), (77, 256360), (85, 232232), (88, 224315), (91, 216920), (104, 189805), (110, 179452), (116, 170170), (119, 165880), (130, 151844), (136, 145145), (140, 140998), (143, 138040), (145, 136136), (154, 128180), (170, 116116), (182, 108460), (187, 105560), (203, 97240), (220, 89726), (221, 89320), (232, 85085), (238, 82940), (260, 75922), (280, 70499), (286, 69020), (290, 68068), (308, 64090), (319, 61880), (340, 58058), (364, 54230), (374, 52780), (377, 52360), (385, 51272), (406, 48620), (440, 44863), (442, 44660), (455, 43384), (476, 41470), (493, 40040), (520, 37961), (572, 34510), (580, 34034), (595, 33176), (616, 32045), (638, 30940), (680, 29029), (715, 27608), (728, 27115), (748, 26390), (754, 26180), (770, 25636), (812, 24310), (884, 22330), (910, 21692), (935, 21112), (952, 20735), (986, 20020), (1001, 19720), (1015, 19448), (1105, 17864), (1144, 17255), (1160, 17017), (1190, 16588), (1276, 15470), (1309, 15080), (1430, 13804), (1496, 13195), (1508, 13090), (1540, 12818), (1547, 12760), (1595, 12376), (1624, 12155), (1768, 11165), (1820, 10846), (1870, 10556), (1885, 10472), (1972, 10010), (2002, 9860), (2030, 9724), (2210, 8932), (2233, 8840), (2380, 8294), (2431, 8120), (2465, 8008), (2552, 7735), (2618, 7540), (2639, 7480), (2860, 6902), (3016, 6545), (3080, 6409), (3094, 6380), (3190, 6188), (3451, 5720), (3640, 5423), (3740, 5278), (3770, 5236), (3944, 5005), (4004, 4930), (4060, 4862), (4147, 4760), (4420, 4466)]