20181279960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{709609}}^1$

素因数の和:709705

約数の個数: 96

約数和(自身を含む): 66419496000

約数和(自身を除く): 46238216040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 79, 90, 120, 158, 180, 237, 316, 360, 395, 474, 632, 711, 790, 948, 1185, 1422, 1580, 1896, 2370, 2844, 3160, 3555, 4740, 5688, 7110, 9480, 14220, 28440, 709609, 1419218, 2128827, 2838436, 3548045, 4257654, 5676872, 6386481, 7096090, 8515308, 10644135, 12772962, 14192180, 17030616, 21288270, 25545924, 28384360, 31932405, 42576540, 51091848, 56059111, 63864810, 85153080, 112118222, 127729620, 168177333, 224236444, 255459240, 280295555, 336354666, 448472888, 504531999, 560591110, 672709332, 840886665, 1009063998, 1121182220, 1345418664, 1681773330, 2018127996, 2242364440, 2522659995, 3363546660, 4036255992, 5045319990, 6727093320, 10090639980, 20181279960]

約数ペア:

[(1, 20181279960), (2, 10090639980), (3, 6727093320), (4, 5045319990), (5, 4036255992), (6, 3363546660), (8, 2522659995), (9, 2242364440), (10, 2018127996), (12, 1681773330), (15, 1345418664), (18, 1121182220), (20, 1009063998), (24, 840886665), (30, 672709332), (36, 560591110), (40, 504531999), (45, 448472888), (60, 336354666), (72, 280295555), (79, 255459240), (90, 224236444), (120, 168177333), (158, 127729620), (180, 112118222), (237, 85153080), (316, 63864810), (360, 56059111), (395, 51091848), (474, 42576540), (632, 31932405), (711, 28384360), (790, 25545924), (948, 21288270), (1185, 17030616), (1422, 14192180), (1580, 12772962), (1896, 10644135), (2370, 8515308), (2844, 7096090), (3160, 6386481), (3555, 5676872), (4740, 4257654), (5688, 3548045), (7110, 2838436), (9480, 2128827), (14220, 1419218), (28440, 709609)]