31903272

素因数分解:

$2^3\times 3^2\times {\mathrm{223}}^1\times {\mathrm{1987}}^1$

素因数の和:2222

約数の個数: 48

約数和(自身を含む): 86835840

約数和(自身を除く): 54932568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 223, 446, 669, 892, 1338, 1784, 1987, 2007, 2676, 3974, 4014, 5352, 5961, 7948, 8028, 11922, 15896, 16056, 17883, 23844, 35766, 47688, 71532, 143064, 443101, 886202, 1329303, 1772404, 2658606, 3544808, 3987909, 5317212, 7975818, 10634424, 15951636, 31903272]

約数ペア:

[(1, 31903272), (2, 15951636), (3, 10634424), (4, 7975818), (6, 5317212), (8, 3987909), (9, 3544808), (12, 2658606), (18, 1772404), (24, 1329303), (36, 886202), (72, 443101), (223, 143064), (446, 71532), (669, 47688), (892, 35766), (1338, 23844), (1784, 17883), (1987, 16056), (2007, 15896), (2676, 11922), (3974, 8028), (4014, 7948), (5352, 5961)]