31219890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80051}}^1$

素因数の和:80074

約数の個数: 32

約数和(自身を含む): 80692416

約数和(自身を除く): 49472526

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 80051, 160102, 240153, 400255, 480306, 800510, 1040663, 1200765, 2081326, 2401530, 3121989, 5203315, 6243978, 10406630, 15609945, 31219890]

約数ペア:

[(1, 31219890), (2, 15609945), (3, 10406630), (5, 6243978), (6, 5203315), (10, 3121989), (13, 2401530), (15, 2081326), (26, 1200765), (30, 1040663), (39, 800510), (65, 480306), (78, 400255), (130, 240153), (195, 160102), (390, 80051)]