491950160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{15259}}^1$

素因数の和:15316

約数の個数: 80

約数和(自身を含む): 1271585280

約数和(自身を除く): 779635120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 15259, 16120, 30518, 32240, 61036, 76295, 122072, 152590, 198367, 244144, 305180, 396734, 473029, 610360, 793468, 946058, 991835, 1220720, 1586936, 1892116, 1983670, 2365145, 3173872, 3784232, 3967340, 4730290, 6149377, 7568464, 7934680, 9460580, 12298754, 15869360, 18921160, 24597508, 30746885, 37842320, 49195016, 61493770, 98390032, 122987540, 245975080, 491950160]

約数ペア:

[(1, 491950160), (2, 245975080), (4, 122987540), (5, 98390032), (8, 61493770), (10, 49195016), (13, 37842320), (16, 30746885), (20, 24597508), (26, 18921160), (31, 15869360), (40, 12298754), (52, 9460580), (62, 7934680), (65, 7568464), (80, 6149377), (104, 4730290), (124, 3967340), (130, 3784232), (155, 3173872), (208, 2365145), (248, 1983670), (260, 1892116), (310, 1586936), (403, 1220720), (496, 991835), (520, 946058), (620, 793468), (806, 610360), (1040, 473029), (1240, 396734), (1612, 305180), (2015, 244144), (2480, 198367), (3224, 152590), (4030, 122072), (6448, 76295), (8060, 61036), (15259, 32240), (16120, 30518)]