18688140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^3$

素因数の和:156

約数の個数: 72

約数和(自身を含む): 57919680

約数和(自身を除く): 39231540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2209, 2820, 4230, 4418, 6627, 8460, 8836, 11045, 13254, 19881, 22090, 26508, 33135, 39762, 44180, 66270, 79524, 99405, 103823, 132540, 198810, 207646, 311469, 397620, 415292, 519115, 622938, 934407, 1038230, 1245876, 1557345, 1868814, 2076460, 3114690, 3737628, 4672035, 6229380, 9344070, 18688140]

約数ペア:

[(1, 18688140), (2, 9344070), (3, 6229380), (4, 4672035), (5, 3737628), (6, 3114690), (9, 2076460), (10, 1868814), (12, 1557345), (15, 1245876), (18, 1038230), (20, 934407), (30, 622938), (36, 519115), (45, 415292), (47, 397620), (60, 311469), (90, 207646), (94, 198810), (141, 132540), (180, 103823), (188, 99405), (235, 79524), (282, 66270), (423, 44180), (470, 39762), (564, 33135), (705, 26508), (846, 22090), (940, 19881), (1410, 13254), (1692, 11045), (2115, 8836), (2209, 8460), (2820, 6627), (4230, 4418)]