66318920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{677}}^1$

素因数の和:798

約数の個数: 64

約数和(自身を含む): 156211200

約数和(自身を除く): 89892280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 124, 155, 158, 248, 310, 316, 395, 620, 632, 677, 790, 1240, 1354, 1580, 2449, 2708, 3160, 3385, 4898, 5416, 6770, 9796, 12245, 13540, 19592, 20987, 24490, 27080, 41974, 48980, 53483, 83948, 97960, 104935, 106966, 167896, 209870, 213932, 267415, 419740, 427864, 534830, 839480, 1069660, 1657973, 2139320, 3315946, 6631892, 8289865, 13263784, 16579730, 33159460, 66318920]

約数ペア:

[(1, 66318920), (2, 33159460), (4, 16579730), (5, 13263784), (8, 8289865), (10, 6631892), (20, 3315946), (31, 2139320), (40, 1657973), (62, 1069660), (79, 839480), (124, 534830), (155, 427864), (158, 419740), (248, 267415), (310, 213932), (316, 209870), (395, 167896), (620, 106966), (632, 104935), (677, 97960), (790, 83948), (1240, 53483), (1354, 48980), (1580, 41974), (2449, 27080), (2708, 24490), (3160, 20987), (3385, 19592), (4898, 13540), (5416, 12245), (6770, 9796)]