128621988

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{857}}^1$

素因数の和:1257

約数の個数: 72

約数和(自身を含む): 356035680

約数和(自身を除く): 227413692

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 379, 396, 758, 857, 1137, 1516, 1714, 2274, 2571, 3411, 3428, 4169, 4548, 5142, 6822, 7713, 8338, 9427, 10284, 12507, 13644, 15426, 16676, 18854, 25014, 28281, 30852, 37521, 37708, 50028, 56562, 75042, 84843, 113124, 150084, 169686, 324803, 339372, 649606, 974409, 1299212, 1948818, 2923227, 3572833, 3897636, 5846454, 7145666, 10718499, 11692908, 14291332, 21436998, 32155497, 42873996, 64310994, 128621988]

約数ペア:

[(1, 128621988), (2, 64310994), (3, 42873996), (4, 32155497), (6, 21436998), (9, 14291332), (11, 11692908), (12, 10718499), (18, 7145666), (22, 5846454), (33, 3897636), (36, 3572833), (44, 2923227), (66, 1948818), (99, 1299212), (132, 974409), (198, 649606), (379, 339372), (396, 324803), (758, 169686), (857, 150084), (1137, 113124), (1516, 84843), (1714, 75042), (2274, 56562), (2571, 50028), (3411, 37708), (3428, 37521), (4169, 30852), (4548, 28281), (5142, 25014), (6822, 18854), (7713, 16676), (8338, 15426), (9427, 13644), (10284, 12507)]