278350640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{751}}^1$

素因数の和:918

約数の個数: 80

約数和(自身を含む): 669707136

約数和(自身を除く): 391356496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 113, 164, 205, 226, 328, 410, 452, 565, 656, 751, 820, 904, 1130, 1502, 1640, 1808, 2260, 3004, 3280, 3755, 4520, 4633, 6008, 7510, 9040, 9266, 12016, 15020, 18532, 23165, 30040, 30791, 37064, 46330, 60080, 61582, 74128, 84863, 92660, 123164, 153955, 169726, 185320, 246328, 307910, 339452, 370640, 424315, 492656, 615820, 678904, 848630, 1231640, 1357808, 1697260, 2463280, 3394520, 3479383, 6789040, 6958766, 13917532, 17396915, 27835064, 34793830, 55670128, 69587660, 139175320, 278350640]

約数ペア:

[(1, 278350640), (2, 139175320), (4, 69587660), (5, 55670128), (8, 34793830), (10, 27835064), (16, 17396915), (20, 13917532), (40, 6958766), (41, 6789040), (80, 3479383), (82, 3394520), (113, 2463280), (164, 1697260), (205, 1357808), (226, 1231640), (328, 848630), (410, 678904), (452, 615820), (565, 492656), (656, 424315), (751, 370640), (820, 339452), (904, 307910), (1130, 246328), (1502, 185320), (1640, 169726), (1808, 153955), (2260, 123164), (3004, 92660), (3280, 84863), (3755, 74128), (4520, 61582), (4633, 60080), (6008, 46330), (7510, 37064), (9040, 30791), (9266, 30040), (12016, 23165), (15020, 18532)]