20147240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13613}}^1$

素因数の和:13661

約数の個数: 32

約数和(自身を含む): 46559880

約数和(自身を除く): 26412640

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13613, 27226, 54452, 68065, 108904, 136130, 272260, 503681, 544520, 1007362, 2014724, 2518405, 4029448, 5036810, 10073620, 20147240]

約数ペア:

[(1, 20147240), (2, 10073620), (4, 5036810), (5, 4029448), (8, 2518405), (10, 2014724), (20, 1007362), (37, 544520), (40, 503681), (74, 272260), (148, 136130), (185, 108904), (296, 68065), (370, 54452), (740, 27226), (1480, 13613)]