31979820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7507}}^1$

素因数の和:7590

約数の個数: 48

約数和(自身を含む): 90816768

約数和(自身を除く): 58836948

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, 7507, 15014, 22521, 30028, 37535, 45042, 75070, 90084, 112605, 150140, 225210, 450420, 532997, 1065994, 1598991, 2131988, 2664985, 3197982, 5329970, 6395964, 7994955, 10659940, 15989910, 31979820]

約数ペア:

[(1, 31979820), (2, 15989910), (3, 10659940), (4, 7994955), (5, 6395964), (6, 5329970), (10, 3197982), (12, 2664985), (15, 2131988), (20, 1598991), (30, 1065994), (60, 532997), (71, 450420), (142, 225210), (213, 150140), (284, 112605), (355, 90084), (426, 75070), (710, 45042), (852, 37535), (1065, 30028), (1420, 22521), (2130, 15014), (4260, 7507)]