1620235970

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{12791}}^1$

素因数の和:13090

約数の個数: 32

約数和(自身を含む): 2984117760

約数和(自身を除く): 1363881790

約数列:

[1, 2, 5, 10, 53, 106, 239, 265, 478, 530, 1195, 2390, 12667, 12791, 25334, 25582, 63335, 63955, 126670, 127910, 677923, 1355846, 3057049, 3389615, 6114098, 6779230, 15285245, 30570490, 162023597, 324047194, 810117985, 1620235970]

約数ペア:

[(1, 1620235970), (2, 810117985), (5, 324047194), (10, 162023597), (53, 30570490), (106, 15285245), (239, 6779230), (265, 6114098), (478, 3389615), (530, 3057049), (1195, 1355846), (2390, 677923), (12667, 127910), (12791, 126670), (25334, 63955), (25582, 63335)]