31478280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{947}}^1$

素因数の和:1238

約数の個数: 64

約数和(自身を含む): 94875840

約数和(自身を除く): 63397560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 277, 554, 831, 947, 1108, 1385, 1662, 1894, 2216, 2770, 2841, 3324, 3788, 4155, 4735, 5540, 5682, 6648, 7576, 8310, 9470, 11080, 11364, 14205, 16620, 18940, 22728, 28410, 33240, 37880, 56820, 113640, 262319, 524638, 786957, 1049276, 1311595, 1573914, 2098552, 2623190, 3147828, 3934785, 5246380, 6295656, 7869570, 10492760, 15739140, 31478280]

約数ペア:

[(1, 31478280), (2, 15739140), (3, 10492760), (4, 7869570), (5, 6295656), (6, 5246380), (8, 3934785), (10, 3147828), (12, 2623190), (15, 2098552), (20, 1573914), (24, 1311595), (30, 1049276), (40, 786957), (60, 524638), (120, 262319), (277, 113640), (554, 56820), (831, 37880), (947, 33240), (1108, 28410), (1385, 22728), (1662, 18940), (1894, 16620), (2216, 14205), (2770, 11364), (2841, 11080), (3324, 9470), (3788, 8310), (4155, 7576), (4735, 6648), (5540, 5682)]