20101550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{727}}^1$

素因数の和:825

約数の個数: 48

約数和(自身を含む): 43330560

約数和(自身を除く): 23229010

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 79, 158, 175, 350, 395, 553, 727, 790, 1106, 1454, 1975, 2765, 3635, 3950, 5089, 5530, 7270, 10178, 13825, 18175, 25445, 27650, 36350, 50890, 57433, 114866, 127225, 254450, 287165, 402031, 574330, 804062, 1435825, 2010155, 2871650, 4020310, 10050775, 20101550]

約数ペア:

[(1, 20101550), (2, 10050775), (5, 4020310), (7, 2871650), (10, 2010155), (14, 1435825), (25, 804062), (35, 574330), (50, 402031), (70, 287165), (79, 254450), (158, 127225), (175, 114866), (350, 57433), (395, 50890), (553, 36350), (727, 27650), (790, 25445), (1106, 18175), (1454, 13825), (1975, 10178), (2765, 7270), (3635, 5530), (3950, 5089)]