20318820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4639}}^1$

素因数の和:4724

約数の個数: 48

約数和(自身を含む): 57684480

約数和(自身を除く): 37365660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 4639, 9278, 13917, 18556, 23195, 27834, 46390, 55668, 69585, 92780, 139170, 278340, 338647, 677294, 1015941, 1354588, 1693235, 2031882, 3386470, 4063764, 5079705, 6772940, 10159410, 20318820]

約数ペア:

[(1, 20318820), (2, 10159410), (3, 6772940), (4, 5079705), (5, 4063764), (6, 3386470), (10, 2031882), (12, 1693235), (15, 1354588), (20, 1015941), (30, 677294), (60, 338647), (73, 278340), (146, 139170), (219, 92780), (292, 69585), (365, 55668), (438, 46390), (730, 27834), (876, 23195), (1095, 18556), (1460, 13917), (2190, 9278), (4380, 4639)]