31245940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1303}}^1$

素因数の和:1432

約数の個数: 48

約数和(自身を含む): 72293760

約数和(自身を除く): 41047820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 1303, 2180, 2398, 2606, 4796, 5212, 5995, 6515, 11990, 13030, 14333, 23980, 26060, 28666, 57332, 71665, 142027, 143330, 284054, 286660, 568108, 710135, 1420270, 1562297, 2840540, 3124594, 6249188, 7811485, 15622970, 31245940]

約数ペア:

[(1, 31245940), (2, 15622970), (4, 7811485), (5, 6249188), (10, 3124594), (11, 2840540), (20, 1562297), (22, 1420270), (44, 710135), (55, 568108), (109, 286660), (110, 284054), (218, 143330), (220, 142027), (436, 71665), (545, 57332), (1090, 28666), (1199, 26060), (1303, 23980), (2180, 14333), (2398, 13030), (2606, 11990), (4796, 6515), (5212, 5995)]