1418840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 3240000

約数和(自身を除く): 1821160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 449, 632, 790, 898, 1580, 1796, 2245, 3160, 3592, 4490, 8980, 17960, 35471, 70942, 141884, 177355, 283768, 354710, 709420, 1418840]

約数ペア:

[(1, 1418840), (2, 709420), (4, 354710), (5, 283768), (8, 177355), (10, 141884), (20, 70942), (40, 35471), (79, 17960), (158, 8980), (316, 4490), (395, 3592), (449, 3160), (632, 2245), (790, 1796), (898, 1580)]