78420320

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2621}}^1$

素因数の和:2664

約数の個数: 96

約数和(自身を含む): 214081056

約数和(自身を除く): 135660736

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 160, 170, 176, 187, 220, 272, 340, 352, 374, 440, 544, 680, 748, 880, 935, 1360, 1496, 1760, 1870, 2621, 2720, 2992, 3740, 5242, 5984, 7480, 10484, 13105, 14960, 20968, 26210, 28831, 29920, 41936, 44557, 52420, 57662, 83872, 89114, 104840, 115324, 144155, 178228, 209680, 222785, 230648, 288310, 356456, 419360, 445570, 461296, 490127, 576620, 712912, 891140, 922592, 980254, 1153240, 1425824, 1782280, 1960508, 2306480, 2450635, 3564560, 3921016, 4612960, 4901270, 7129120, 7842032, 9802540, 15684064, 19605080, 39210160, 78420320]

約数ペア:

[(1, 78420320), (2, 39210160), (4, 19605080), (5, 15684064), (8, 9802540), (10, 7842032), (11, 7129120), (16, 4901270), (17, 4612960), (20, 3921016), (22, 3564560), (32, 2450635), (34, 2306480), (40, 1960508), (44, 1782280), (55, 1425824), (68, 1153240), (80, 980254), (85, 922592), (88, 891140), (110, 712912), (136, 576620), (160, 490127), (170, 461296), (176, 445570), (187, 419360), (220, 356456), (272, 288310), (340, 230648), (352, 222785), (374, 209680), (440, 178228), (544, 144155), (680, 115324), (748, 104840), (880, 89114), (935, 83872), (1360, 57662), (1496, 52420), (1760, 44557), (1870, 41936), (2621, 29920), (2720, 28831), (2992, 26210), (3740, 20968), (5242, 14960), (5984, 13105), (7480, 10484)]