20993668360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2689}}^1\times {\mathrm{27883}}^1$

素因数の和:30590

約数の個数: 64

約数和(自身を含む): 54005731200

約数和(自身を除く): 33012062840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2689, 5378, 10756, 13445, 18823, 21512, 26890, 27883, 37646, 53780, 55766, 75292, 94115, 107560, 111532, 139415, 150584, 188230, 195181, 223064, 278830, 376460, 390362, 557660, 752920, 780724, 975905, 1115320, 1561448, 1951810, 3903620, 7807240, 74977387, 149954774, 299909548, 374886935, 524841709, 599819096, 749773870, 1049683418, 1499547740, 2099366836, 2624208545, 2999095480, 4198733672, 5248417090, 10496834180, 20993668360]

約数ペア:

[(1, 20993668360), (2, 10496834180), (4, 5248417090), (5, 4198733672), (7, 2999095480), (8, 2624208545), (10, 2099366836), (14, 1499547740), (20, 1049683418), (28, 749773870), (35, 599819096), (40, 524841709), (56, 374886935), (70, 299909548), (140, 149954774), (280, 74977387), (2689, 7807240), (5378, 3903620), (10756, 1951810), (13445, 1561448), (18823, 1115320), (21512, 975905), (26890, 780724), (27883, 752920), (37646, 557660), (53780, 390362), (55766, 376460), (75292, 278830), (94115, 223064), (107560, 195181), (111532, 188230), (139415, 150584)]