20754790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 45909504

約数和(自身を除く): 25154714

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 107, 119, 163, 170, 214, 238, 326, 535, 595, 749, 815, 1070, 1141, 1190, 1498, 1630, 1819, 2282, 2771, 3638, 3745, 5542, 5705, 7490, 9095, 11410, 12733, 13855, 17441, 18190, 19397, 25466, 27710, 34882, 38794, 63665, 87205, 96985, 122087, 127330, 174410, 193970, 244174, 296497, 592994, 610435, 1220870, 1482485, 2075479, 2964970, 4150958, 10377395, 20754790]

約数ペア:

[(1, 20754790), (2, 10377395), (5, 4150958), (7, 2964970), (10, 2075479), (14, 1482485), (17, 1220870), (34, 610435), (35, 592994), (70, 296497), (85, 244174), (107, 193970), (119, 174410), (163, 127330), (170, 122087), (214, 96985), (238, 87205), (326, 63665), (535, 38794), (595, 34882), (749, 27710), (815, 25466), (1070, 19397), (1141, 18190), (1190, 17441), (1498, 13855), (1630, 12733), (1819, 11410), (2282, 9095), (2771, 7490), (3638, 5705), (3745, 5542)]