81145140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1352419}}^1$

素因数の和:1352431

約数の個数: 24

約数和(自身を含む): 227206560

約数和(自身を除く): 146061420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1352419, 2704838, 4057257, 5409676, 6762095, 8114514, 13524190, 16229028, 20286285, 27048380, 40572570, 81145140]

約数ペア:

[(1, 81145140), (2, 40572570), (3, 27048380), (4, 20286285), (5, 16229028), (6, 13524190), (10, 8114514), (12, 6762095), (15, 5409676), (20, 4057257), (30, 2704838), (60, 1352419)]