20468040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{607}}^1$

素因数の和:902

約数の個数: 64

約数和(自身を含む): 61724160

約数和(自身を除く): 41256120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 281, 562, 607, 843, 1124, 1214, 1405, 1686, 1821, 2248, 2428, 2810, 3035, 3372, 3642, 4215, 4856, 5620, 6070, 6744, 7284, 8430, 9105, 11240, 12140, 14568, 16860, 18210, 24280, 33720, 36420, 72840, 170567, 341134, 511701, 682268, 852835, 1023402, 1364536, 1705670, 2046804, 2558505, 3411340, 4093608, 5117010, 6822680, 10234020, 20468040]

約数ペア:

[(1, 20468040), (2, 10234020), (3, 6822680), (4, 5117010), (5, 4093608), (6, 3411340), (8, 2558505), (10, 2046804), (12, 1705670), (15, 1364536), (20, 1023402), (24, 852835), (30, 682268), (40, 511701), (60, 341134), (120, 170567), (281, 72840), (562, 36420), (607, 33720), (843, 24280), (1124, 18210), (1214, 16860), (1405, 14568), (1686, 12140), (1821, 11240), (2248, 9105), (2428, 8430), (2810, 7284), (3035, 6744), (3372, 6070), (3642, 5620), (4215, 4856)]