218998980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1381}}^1$

素因数の和:2277

約数の個数: 72

約数和(自身を含む): 665532504

約数和(自身を除く): 446533524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 881, 1381, 1762, 2643, 2762, 3524, 4143, 4405, 5286, 5524, 6905, 7929, 8286, 8810, 10572, 12429, 13215, 13810, 15858, 16572, 17620, 20715, 24858, 26430, 27620, 31716, 39645, 41430, 49716, 52860, 62145, 79290, 82860, 124290, 158580, 248580, 1216661, 2433322, 3649983, 4866644, 6083305, 7299966, 10949949, 12166610, 14599932, 18249915, 21899898, 24333220, 36499830, 43799796, 54749745, 72999660, 109499490, 218998980]

約数ペア:

[(1, 218998980), (2, 109499490), (3, 72999660), (4, 54749745), (5, 43799796), (6, 36499830), (9, 24333220), (10, 21899898), (12, 18249915), (15, 14599932), (18, 12166610), (20, 10949949), (30, 7299966), (36, 6083305), (45, 4866644), (60, 3649983), (90, 2433322), (180, 1216661), (881, 248580), (1381, 158580), (1762, 124290), (2643, 82860), (2762, 79290), (3524, 62145), (4143, 52860), (4405, 49716), (5286, 41430), (5524, 39645), (6905, 31716), (7929, 27620), (8286, 26430), (8810, 24858), (10572, 20715), (12429, 17620), (13215, 16572), (13810, 15858)]