81786840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{681557}}^1$

素因数の和:681571

約数の個数: 32

約数和(自身を含む): 245360880

約数和(自身を除く): 163574040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 681557, 1363114, 2044671, 2726228, 3407785, 4089342, 5452456, 6815570, 8178684, 10223355, 13631140, 16357368, 20446710, 27262280, 40893420, 81786840]

約数ペア:

[(1, 81786840), (2, 40893420), (3, 27262280), (4, 20446710), (5, 16357368), (6, 13631140), (8, 10223355), (10, 8178684), (12, 6815570), (15, 5452456), (20, 4089342), (24, 3407785), (30, 2726228), (40, 2044671), (60, 1363114), (120, 681557)]