85187220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19997}}^1$

素因数の和:20080

約数の個数: 48

約数和(自身を含む): 241895808

約数和(自身を除く): 156708588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 19997, 39994, 59991, 79988, 99985, 119982, 199970, 239964, 299955, 399940, 599910, 1199820, 1419787, 2839574, 4259361, 5679148, 7098935, 8518722, 14197870, 17037444, 21296805, 28395740, 42593610, 85187220]

約数ペア:

[(1, 85187220), (2, 42593610), (3, 28395740), (4, 21296805), (5, 17037444), (6, 14197870), (10, 8518722), (12, 7098935), (15, 5679148), (20, 4259361), (30, 2839574), (60, 1419787), (71, 1199820), (142, 599910), (213, 399940), (284, 299955), (355, 239964), (426, 199970), (710, 119982), (852, 99985), (1065, 79988), (1420, 59991), (2130, 39994), (4260, 19997)]