42908120

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{6581}}^1$

素因数の和:6755

約数の個数: 32

約数和(自身を含む): 97150320

約数和(自身を除く): 54242200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 6581, 13162, 26324, 32905, 52648, 65810, 131620, 263240, 1072703, 2145406, 4290812, 5363515, 8581624, 10727030, 21454060, 42908120]

約数ペア:

[(1, 42908120), (2, 21454060), (4, 10727030), (5, 8581624), (8, 5363515), (10, 4290812), (20, 2145406), (40, 1072703), (163, 263240), (326, 131620), (652, 65810), (815, 52648), (1304, 32905), (1630, 26324), (3260, 13162), (6520, 6581)]