78432560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{571}}^1$

素因数の和:702

約数の個数: 80

約数和(自身を含む): 195335712

約数和(自身を除く): 116903152

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 101, 136, 170, 202, 272, 340, 404, 505, 571, 680, 808, 1010, 1142, 1360, 1616, 1717, 2020, 2284, 2855, 3434, 4040, 4568, 5710, 6868, 8080, 8585, 9136, 9707, 11420, 13736, 17170, 19414, 22840, 27472, 34340, 38828, 45680, 48535, 57671, 68680, 77656, 97070, 115342, 137360, 155312, 194140, 230684, 288355, 388280, 461368, 576710, 776560, 922736, 980407, 1153420, 1960814, 2306840, 3921628, 4613680, 4902035, 7843256, 9804070, 15686512, 19608140, 39216280, 78432560]

約数ペア:

[(1, 78432560), (2, 39216280), (4, 19608140), (5, 15686512), (8, 9804070), (10, 7843256), (16, 4902035), (17, 4613680), (20, 3921628), (34, 2306840), (40, 1960814), (68, 1153420), (80, 980407), (85, 922736), (101, 776560), (136, 576710), (170, 461368), (202, 388280), (272, 288355), (340, 230684), (404, 194140), (505, 155312), (571, 137360), (680, 115342), (808, 97070), (1010, 77656), (1142, 68680), (1360, 57671), (1616, 48535), (1717, 45680), (2020, 38828), (2284, 34340), (2855, 27472), (3434, 22840), (4040, 19414), (4568, 17170), (5710, 13736), (6868, 11420), (8080, 9707), (8585, 9136)]