28969900

素因数分解:

$2^2\times 5^2\times {\mathrm{271}}^1\times {\mathrm{1069}}^1$

素因数の和:1354

約数の個数: 36

約数和(自身を含む): 63155680

約数和(自身を除く): 34185780

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 271, 542, 1069, 1084, 1355, 2138, 2710, 4276, 5345, 5420, 6775, 10690, 13550, 21380, 26725, 27100, 53450, 106900, 289699, 579398, 1158796, 1448495, 2896990, 5793980, 7242475, 14484950, 28969900]

約数ペア:

[(1, 28969900), (2, 14484950), (4, 7242475), (5, 5793980), (10, 2896990), (20, 1448495), (25, 1158796), (50, 579398), (100, 289699), (271, 106900), (542, 53450), (1069, 27100), (1084, 26725), (1355, 21380), (2138, 13550), (2710, 10690), (4276, 6775), (5345, 5420)]