25430680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1993}}^1$

素因数の和:2044

約数の個数: 64

約数和(自身を含む): 64605600

約数和(自身を除く): 39174920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1595, 1993, 2552, 3190, 3986, 6380, 7972, 9965, 12760, 15944, 19930, 21923, 39860, 43846, 57797, 79720, 87692, 109615, 115594, 175384, 219230, 231188, 288985, 438460, 462376, 577970, 635767, 876920, 1155940, 1271534, 2311880, 2543068, 3178835, 5086136, 6357670, 12715340, 25430680]

約数ペア:

[(1, 25430680), (2, 12715340), (4, 6357670), (5, 5086136), (8, 3178835), (10, 2543068), (11, 2311880), (20, 1271534), (22, 1155940), (29, 876920), (40, 635767), (44, 577970), (55, 462376), (58, 438460), (88, 288985), (110, 231188), (116, 219230), (145, 175384), (220, 115594), (232, 109615), (290, 87692), (319, 79720), (440, 57797), (580, 43846), (638, 39860), (1160, 21923), (1276, 19930), (1595, 15944), (1993, 12760), (2552, 9965), (3190, 7972), (3986, 6380)]