80989360

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:191

約数の個数: 120

約数和(自身を含む): 208308096

約数和(自身を除く): 127318736

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 113, 124, 136, 155, 170, 226, 248, 272, 289, 310, 340, 452, 496, 527, 565, 578, 620, 680, 904, 1054, 1130, 1156, 1240, 1360, 1445, 1808, 1921, 2108, 2260, 2312, 2480, 2635, 2890, 3503, 3842, 4216, 4520, 4624, 5270, 5780, 7006, 7684, 8432, 8959, 9040, 9605, 10540, 11560, 14012, 15368, 17515, 17918, 19210, 21080, 23120, 28024, 30736, 32657, 35030, 35836, 38420, 42160, 44795, 56048, 59551, 65314, 70060, 71672, 76840, 89590, 119102, 130628, 140120, 143344, 153680, 163285, 179180, 238204, 261256, 280240, 297755, 326570, 358360, 476408, 522512, 595510, 653140, 716720, 952816, 1012367, 1191020, 1306280, 2024734, 2382040, 2612560, 4049468, 4764080, 5061835, 8098936, 10123670, 16197872, 20247340, 40494680, 80989360]

約数ペア:

[(1, 80989360), (2, 40494680), (4, 20247340), (5, 16197872), (8, 10123670), (10, 8098936), (16, 5061835), (17, 4764080), (20, 4049468), (31, 2612560), (34, 2382040), (40, 2024734), (62, 1306280), (68, 1191020), (80, 1012367), (85, 952816), (113, 716720), (124, 653140), (136, 595510), (155, 522512), (170, 476408), (226, 358360), (248, 326570), (272, 297755), (289, 280240), (310, 261256), (340, 238204), (452, 179180), (496, 163285), (527, 153680), (565, 143344), (578, 140120), (620, 130628), (680, 119102), (904, 89590), (1054, 76840), (1130, 71672), (1156, 70060), (1240, 65314), (1360, 59551), (1445, 56048), (1808, 44795), (1921, 42160), (2108, 38420), (2260, 35836), (2312, 35030), (2480, 32657), (2635, 30736), (2890, 28024), (3503, 23120), (3842, 21080), (4216, 19210), (4520, 17918), (4624, 17515), (5270, 15368), (5780, 14012), (7006, 11560), (7684, 10540), (8432, 9605), (8959, 9040)]