19888690

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{271}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 17125070

約数列:

[1, 2, 5, 10, 41, 82, 179, 205, 271, 358, 410, 542, 895, 1355, 1790, 2710, 7339, 11111, 14678, 22222, 36695, 48509, 55555, 73390, 97018, 111110, 242545, 485090, 1988869, 3977738, 9944345, 19888690]

約数ペア:

[(1, 19888690), (2, 9944345), (5, 3977738), (10, 1988869), (41, 485090), (82, 242545), (179, 111110), (205, 97018), (271, 73390), (358, 55555), (410, 48509), (542, 36695), (895, 22222), (1355, 14678), (1790, 11111), (2710, 7339)]