81335940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6247}}^1$

素因数の和:6297

約数の個数: 96

約数和(自身を含む): 268713984

約数和(自身を除く): 187378044

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1860, 2170, 2604, 3255, 4340, 6247, 6510, 12494, 13020, 18741, 24988, 31235, 37482, 43729, 62470, 74964, 87458, 93705, 124940, 131187, 174916, 187410, 193657, 218645, 262374, 374820, 387314, 437290, 524748, 580971, 655935, 774628, 874580, 968285, 1161942, 1311870, 1355599, 1936570, 2323884, 2623740, 2711198, 2904855, 3873140, 4066797, 5422396, 5809710, 6777995, 8133594, 11619420, 13555990, 16267188, 20333985, 27111980, 40667970, 81335940]

約数ペア:

[(1, 81335940), (2, 40667970), (3, 27111980), (4, 20333985), (5, 16267188), (6, 13555990), (7, 11619420), (10, 8133594), (12, 6777995), (14, 5809710), (15, 5422396), (20, 4066797), (21, 3873140), (28, 2904855), (30, 2711198), (31, 2623740), (35, 2323884), (42, 1936570), (60, 1355599), (62, 1311870), (70, 1161942), (84, 968285), (93, 874580), (105, 774628), (124, 655935), (140, 580971), (155, 524748), (186, 437290), (210, 387314), (217, 374820), (310, 262374), (372, 218645), (420, 193657), (434, 187410), (465, 174916), (620, 131187), (651, 124940), (868, 93705), (930, 87458), (1085, 74964), (1302, 62470), (1860, 43729), (2170, 37482), (2604, 31235), (3255, 24988), (4340, 18741), (6247, 13020), (6510, 12494)]