39972040

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{5521}}^1$

素因数の和:5713

約数の個数: 32

約数和(自身を含む): 90450360

約数和(自身を除く): 50478320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 5521, 7240, 11042, 22084, 27605, 44168, 55210, 110420, 220840, 999301, 1998602, 3997204, 4996505, 7994408, 9993010, 19986020, 39972040]

約数ペア:

[(1, 39972040), (2, 19986020), (4, 9993010), (5, 7994408), (8, 4996505), (10, 3997204), (20, 1998602), (40, 999301), (181, 220840), (362, 110420), (724, 55210), (905, 44168), (1448, 27605), (1810, 22084), (3620, 11042), (5521, 7240)]