31785280

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1399}}^1$

素因数の和:1487

約数の個数: 56

約数和(自身を含む): 76809600

約数和(自身を除く): 45024320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1399, 1420, 2272, 2798, 2840, 4544, 5596, 5680, 6995, 11192, 11360, 13990, 22384, 22720, 27980, 44768, 55960, 89536, 99329, 111920, 198658, 223840, 397316, 447680, 496645, 794632, 993290, 1589264, 1986580, 3178528, 3973160, 6357056, 7946320, 15892640, 31785280]

約数ペア:

[(1, 31785280), (2, 15892640), (4, 7946320), (5, 6357056), (8, 3973160), (10, 3178528), (16, 1986580), (20, 1589264), (32, 993290), (40, 794632), (64, 496645), (71, 447680), (80, 397316), (142, 223840), (160, 198658), (284, 111920), (320, 99329), (355, 89536), (568, 55960), (710, 44768), (1136, 27980), (1399, 22720), (1420, 22384), (2272, 13990), (2798, 11360), (2840, 11192), (4544, 6995), (5596, 5680)]