81863940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1364399}}^1$

素因数の和:1364411

約数の個数: 24

約数和(自身を含む): 229219200

約数和(自身を除く): 147355260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1364399, 2728798, 4093197, 5457596, 6821995, 8186394, 13643990, 16372788, 20465985, 27287980, 40931970, 81863940]

約数ペア:

[(1, 81863940), (2, 40931970), (3, 27287980), (4, 20465985), (5, 16372788), (6, 13643990), (10, 8186394), (12, 6821995), (15, 5457596), (20, 4093197), (30, 2728798), (60, 1364399)]