20151761868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{185539}}^1$

素因数の和:185987

約数の個数: 72

約数和(自身を含む): 58351587840

約数和(自身を除く): 38199825972

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 431, 862, 1293, 1724, 2586, 3017, 3879, 5172, 6034, 7758, 9051, 12068, 15516, 18102, 27153, 36204, 54306, 108612, 185539, 371078, 556617, 742156, 1113234, 1298773, 1669851, 2226468, 2597546, 3339702, 3896319, 5195092, 6679404, 7792638, 11688957, 15585276, 23377914, 46755828, 79967309, 159934618, 239901927, 319869236, 479803854, 559771163, 719705781, 959607708, 1119542326, 1439411562, 1679313489, 2239084652, 2878823124, 3358626978, 5037940467, 6717253956, 10075880934, 20151761868]

約数ペア:

[(1, 20151761868), (2, 10075880934), (3, 6717253956), (4, 5037940467), (6, 3358626978), (7, 2878823124), (9, 2239084652), (12, 1679313489), (14, 1439411562), (18, 1119542326), (21, 959607708), (28, 719705781), (36, 559771163), (42, 479803854), (63, 319869236), (84, 239901927), (126, 159934618), (252, 79967309), (431, 46755828), (862, 23377914), (1293, 15585276), (1724, 11688957), (2586, 7792638), (3017, 6679404), (3879, 5195092), (5172, 3896319), (6034, 3339702), (7758, 2597546), (9051, 2226468), (12068, 1669851), (15516, 1298773), (18102, 1113234), (27153, 742156), (36204, 556617), (54306, 371078), (108612, 185539)]