201321920

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8861}}^1$

素因数の和:8949

約数の個数: 56

約数和(自身を含む): 486204768

約数和(自身を除く): 284882848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1420, 2272, 2840, 4544, 5680, 8861, 11360, 17722, 22720, 35444, 44305, 70888, 88610, 141776, 177220, 283552, 354440, 567104, 629131, 708880, 1258262, 1417760, 2516524, 2835520, 3145655, 5033048, 6291310, 10066096, 12582620, 20132192, 25165240, 40264384, 50330480, 100660960, 201321920]

約数ペア:

[(1, 201321920), (2, 100660960), (4, 50330480), (5, 40264384), (8, 25165240), (10, 20132192), (16, 12582620), (20, 10066096), (32, 6291310), (40, 5033048), (64, 3145655), (71, 2835520), (80, 2516524), (142, 1417760), (160, 1258262), (284, 708880), (320, 629131), (355, 567104), (568, 354440), (710, 283552), (1136, 177220), (1420, 141776), (2272, 88610), (2840, 70888), (4544, 44305), (5680, 35444), (8861, 22720), (11360, 17722)]