9969479900

素因数分解:

$2^2\times 5^2\times {\mathrm{131}}^1\times {\mathrm{787}}^1\times {\mathrm{967}}^1$

素因数の和:1899

約数の個数: 72

約数和(自身を含む): 21849184896

約数和(自身を除く): 11879704996

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 131, 262, 524, 655, 787, 967, 1310, 1574, 1934, 2620, 3148, 3275, 3868, 3935, 4835, 6550, 7870, 9670, 13100, 15740, 19340, 19675, 24175, 39350, 48350, 78700, 96700, 103097, 126677, 206194, 253354, 412388, 506708, 515485, 633385, 761029, 1030970, 1266770, 1522058, 2061940, 2533540, 2577425, 3044116, 3166925, 3805145, 5154850, 6333850, 7610290, 10309700, 12667700, 15220580, 19025725, 38051450, 76102900, 99694799, 199389598, 398779196, 498473995, 996947990, 1993895980, 2492369975, 4984739950, 9969479900]

約数ペア:

[(1, 9969479900), (2, 4984739950), (4, 2492369975), (5, 1993895980), (10, 996947990), (20, 498473995), (25, 398779196), (50, 199389598), (100, 99694799), (131, 76102900), (262, 38051450), (524, 19025725), (655, 15220580), (787, 12667700), (967, 10309700), (1310, 7610290), (1574, 6333850), (1934, 5154850), (2620, 3805145), (3148, 3166925), (3275, 3044116), (3868, 2577425), (3935, 2533540), (4835, 2061940), (6550, 1522058), (7870, 1266770), (9670, 1030970), (13100, 761029), (15740, 633385), (19340, 515485), (19675, 506708), (24175, 412388), (39350, 253354), (48350, 206194), (78700, 126677), (96700, 103097)]