31067660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{331}}^1$

素因数の和:391

約数の個数: 72

約数和(自身を含む): 74377296

約数和(自身を除く): 43309636

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 331, 361, 380, 494, 662, 722, 988, 1235, 1324, 1444, 1655, 1805, 2470, 3310, 3610, 4303, 4693, 4940, 6289, 6620, 7220, 8606, 9386, 12578, 17212, 18772, 21515, 23465, 25156, 31445, 43030, 46930, 62890, 81757, 86060, 93860, 119491, 125780, 163514, 238982, 327028, 408785, 477964, 597455, 817570, 1194910, 1553383, 1635140, 2389820, 3106766, 6213532, 7766915, 15533830, 31067660]

約数ペア:

[(1, 31067660), (2, 15533830), (4, 7766915), (5, 6213532), (10, 3106766), (13, 2389820), (19, 1635140), (20, 1553383), (26, 1194910), (38, 817570), (52, 597455), (65, 477964), (76, 408785), (95, 327028), (130, 238982), (190, 163514), (247, 125780), (260, 119491), (331, 93860), (361, 86060), (380, 81757), (494, 62890), (662, 46930), (722, 43030), (988, 31445), (1235, 25156), (1324, 23465), (1444, 21515), (1655, 18772), (1805, 17212), (2470, 12578), (3310, 9386), (3610, 8606), (4303, 7220), (4693, 6620), (4940, 6289)]