638401635

素因数分解:

$3^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{12347}}^1$

素因数の和:12744

約数の個数: 32

約数和(自身を含む): 1137991680

約数和(自身を除く): 499590045

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 383, 1149, 1915, 3447, 5745, 10341, 12347, 17235, 37041, 51705, 61735, 111123, 185205, 333369, 555615, 1666845, 4728901, 14186703, 23644505, 42560109, 70933515, 127680327, 212800545, 638401635]

約数ペア:

[(1, 638401635), (3, 212800545), (5, 127680327), (9, 70933515), (15, 42560109), (27, 23644505), (45, 14186703), (135, 4728901), (383, 1666845), (1149, 555615), (1915, 333369), (3447, 185205), (5745, 111123), (10341, 61735), (12347, 51705), (17235, 37041)]