40891120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:418

約数の個数: 80

約数和(自身を含む): 101966688

約数和(自身を除く): 61075568

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 107, 136, 170, 214, 272, 281, 340, 428, 535, 562, 680, 856, 1070, 1124, 1360, 1405, 1712, 1819, 2140, 2248, 2810, 3638, 4280, 4496, 4777, 5620, 7276, 8560, 9095, 9554, 11240, 14552, 18190, 19108, 22480, 23885, 29104, 30067, 36380, 38216, 47770, 60134, 72760, 76432, 95540, 120268, 145520, 150335, 191080, 240536, 300670, 382160, 481072, 511139, 601340, 1022278, 1202680, 2044556, 2405360, 2555695, 4089112, 5111390, 8178224, 10222780, 20445560, 40891120]

約数ペア:

[(1, 40891120), (2, 20445560), (4, 10222780), (5, 8178224), (8, 5111390), (10, 4089112), (16, 2555695), (17, 2405360), (20, 2044556), (34, 1202680), (40, 1022278), (68, 601340), (80, 511139), (85, 481072), (107, 382160), (136, 300670), (170, 240536), (214, 191080), (272, 150335), (281, 145520), (340, 120268), (428, 95540), (535, 76432), (562, 72760), (680, 60134), (856, 47770), (1070, 38216), (1124, 36380), (1360, 30067), (1405, 29104), (1712, 23885), (1819, 22480), (2140, 19108), (2248, 18190), (2810, 14552), (3638, 11240), (4280, 9554), (4496, 9095), (4777, 8560), (5620, 7276)]