20517500

素因数分解:

$2^2\times 5^4\times {\mathrm{29}}^1\times {\mathrm{283}}^1$

素因数の和:336

約数の個数: 60

約数和(自身を含む): 46578840

約数和(自身を除く): 26061340

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 125, 145, 250, 283, 290, 500, 566, 580, 625, 725, 1132, 1250, 1415, 1450, 2500, 2830, 2900, 3625, 5660, 7075, 7250, 8207, 14150, 14500, 16414, 18125, 28300, 32828, 35375, 36250, 41035, 70750, 72500, 82070, 141500, 164140, 176875, 205175, 353750, 410350, 707500, 820700, 1025875, 2051750, 4103500, 5129375, 10258750, 20517500]

約数ペア:

[(1, 20517500), (2, 10258750), (4, 5129375), (5, 4103500), (10, 2051750), (20, 1025875), (25, 820700), (29, 707500), (50, 410350), (58, 353750), (100, 205175), (116, 176875), (125, 164140), (145, 141500), (250, 82070), (283, 72500), (290, 70750), (500, 41035), (566, 36250), (580, 35375), (625, 32828), (725, 28300), (1132, 18125), (1250, 16414), (1415, 14500), (1450, 14150), (2500, 8207), (2830, 7250), (2900, 7075), (3625, 5660)]