20004372025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{13399}}^1$

素因数の和:13570

約数の個数: 48

約数和(自身を含む): 27815184000

約数和(自身を除く): 7810811975

約数列:

[1, 5, 11, 25, 55, 61, 89, 275, 305, 445, 671, 979, 1525, 2225, 3355, 4895, 5429, 13399, 16775, 24475, 27145, 59719, 66995, 135725, 147389, 298595, 334975, 736945, 817339, 1192511, 1492975, 3684725, 4086695, 5962555, 8990729, 13117621, 20433475, 29812775, 44953645, 65588105, 72743171, 224768225, 327940525, 363715855, 800174881, 1818579275, 4000874405, 20004372025]

約数ペア:

[(1, 20004372025), (5, 4000874405), (11, 1818579275), (25, 800174881), (55, 363715855), (61, 327940525), (89, 224768225), (275, 72743171), (305, 65588105), (445, 44953645), (671, 29812775), (979, 20433475), (1525, 13117621), (2225, 8990729), (3355, 5962555), (4895, 4086695), (5429, 3684725), (13399, 1492975), (16775, 1192511), (24475, 817339), (27145, 736945), (59719, 334975), (66995, 298595), (135725, 147389)]