18638520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1223}}^1$

素因数の和:1364

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 37763400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 127, 254, 381, 508, 635, 762, 1016, 1223, 1270, 1524, 1905, 2446, 2540, 3048, 3669, 3810, 4892, 5080, 6115, 7338, 7620, 9784, 12230, 14676, 15240, 18345, 24460, 29352, 36690, 48920, 73380, 146760, 155321, 310642, 465963, 621284, 776605, 931926, 1242568, 1553210, 1863852, 2329815, 3106420, 3727704, 4659630, 6212840, 9319260, 18638520]

約数ペア:

[(1, 18638520), (2, 9319260), (3, 6212840), (4, 4659630), (5, 3727704), (6, 3106420), (8, 2329815), (10, 1863852), (12, 1553210), (15, 1242568), (20, 931926), (24, 776605), (30, 621284), (40, 465963), (60, 310642), (120, 155321), (127, 146760), (254, 73380), (381, 48920), (508, 36690), (635, 29352), (762, 24460), (1016, 18345), (1223, 15240), (1270, 14676), (1524, 12230), (1905, 9784), (2446, 7620), (2540, 7338), (3048, 6115), (3669, 5080), (3810, 4892)]