90945560

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{6869}}^1$

素因数の和:7211

約数の個数: 32

約数和(自身を含む): 205275600

約数和(自身を除く): 114330040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 6869, 13240, 13738, 27476, 34345, 54952, 68690, 137380, 274760, 2273639, 4547278, 9094556, 11368195, 18189112, 22736390, 45472780, 90945560]

約数ペア:

[(1, 90945560), (2, 45472780), (4, 22736390), (5, 18189112), (8, 11368195), (10, 9094556), (20, 4547278), (40, 2273639), (331, 274760), (662, 137380), (1324, 68690), (1655, 54952), (2648, 34345), (3310, 27476), (6620, 13738), (6869, 13240)]