28018770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71843}}^1$

素因数の和:71866

約数の個数: 32

約数和(自身を含む): 72418752

約数和(自身を除く): 44399982

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 71843, 143686, 215529, 359215, 431058, 718430, 933959, 1077645, 1867918, 2155290, 2801877, 4669795, 5603754, 9339590, 14009385, 28018770]

約数ペア:

[(1, 28018770), (2, 14009385), (3, 9339590), (5, 5603754), (6, 4669795), (10, 2801877), (13, 2155290), (15, 1867918), (26, 1077645), (30, 933959), (39, 718430), (65, 431058), (78, 359215), (130, 215529), (195, 143686), (390, 71843)]