99181980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23957}}^1$

素因数の和:23995

約数の個数: 72

約数和(自身を含む): 313945632

約数和(自身を除く): 214763652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 23957, 47914, 71871, 95828, 119785, 143742, 215613, 239570, 287484, 359355, 431226, 479140, 551011, 718710, 862452, 1078065, 1102022, 1437420, 1653033, 2156130, 2204044, 2755055, 3306066, 4312260, 4959099, 5510110, 6612132, 8265165, 9918198, 11020220, 16530330, 19836396, 24795495, 33060660, 49590990, 99181980]

約数ペア:

[(1, 99181980), (2, 49590990), (3, 33060660), (4, 24795495), (5, 19836396), (6, 16530330), (9, 11020220), (10, 9918198), (12, 8265165), (15, 6612132), (18, 5510110), (20, 4959099), (23, 4312260), (30, 3306066), (36, 2755055), (45, 2204044), (46, 2156130), (60, 1653033), (69, 1437420), (90, 1102022), (92, 1078065), (115, 862452), (138, 718710), (180, 551011), (207, 479140), (230, 431226), (276, 359355), (345, 287484), (414, 239570), (460, 215613), (690, 143742), (828, 119785), (1035, 95828), (1380, 71871), (2070, 47914), (4140, 23957)]