28419760

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3449}}^1$

素因数の和:3565

約数の個数: 40

約数和(自身を含む): 66736800

約数和(自身を除く): 38317040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 3449, 4120, 6898, 8240, 13796, 17245, 27592, 34490, 55184, 68980, 137960, 275920, 355247, 710494, 1420988, 1776235, 2841976, 3552470, 5683952, 7104940, 14209880, 28419760]

約数ペア:

[(1, 28419760), (2, 14209880), (4, 7104940), (5, 5683952), (8, 3552470), (10, 2841976), (16, 1776235), (20, 1420988), (40, 710494), (80, 355247), (103, 275920), (206, 137960), (412, 68980), (515, 55184), (824, 34490), (1030, 27592), (1648, 17245), (2060, 13796), (3449, 8240), (4120, 6898)]