20656475560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{15541}}^1$

素因数の和:15707

約数の個数: 128

約数和(自身を含む): 54787415040

約数和(自身を除く): 34130939480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 101, 140, 188, 202, 235, 280, 329, 376, 404, 470, 505, 658, 707, 808, 940, 1010, 1316, 1414, 1645, 1880, 2020, 2632, 2828, 3290, 3535, 4040, 4747, 5656, 6580, 7070, 9494, 13160, 14140, 15541, 18988, 23735, 28280, 31082, 33229, 37976, 47470, 62164, 66458, 77705, 94940, 108787, 124328, 132916, 155410, 166145, 189880, 217574, 265832, 310820, 332290, 435148, 543935, 621640, 664580, 730427, 870296, 1087870, 1329160, 1460854, 1569641, 2175740, 2921708, 3139282, 3652135, 4351480, 5112989, 5843416, 6278564, 7304270, 7848205, 10225978, 10987487, 12557128, 14608540, 15696410, 20451956, 21974974, 25564945, 29217080, 31392820, 40903912, 43949948, 51129890, 54937435, 62785640, 73773127, 87899896, 102259780, 109874870, 147546254, 204519560, 219749740, 295092508, 368865635, 439499480, 516411889, 590185016, 737731270, 1032823778, 1475462540, 2065647556, 2582059445, 2950925080, 4131295112, 5164118890, 10328237780, 20656475560]

約数ペア:

[(1, 20656475560), (2, 10328237780), (4, 5164118890), (5, 4131295112), (7, 2950925080), (8, 2582059445), (10, 2065647556), (14, 1475462540), (20, 1032823778), (28, 737731270), (35, 590185016), (40, 516411889), (47, 439499480), (56, 368865635), (70, 295092508), (94, 219749740), (101, 204519560), (140, 147546254), (188, 109874870), (202, 102259780), (235, 87899896), (280, 73773127), (329, 62785640), (376, 54937435), (404, 51129890), (470, 43949948), (505, 40903912), (658, 31392820), (707, 29217080), (808, 25564945), (940, 21974974), (1010, 20451956), (1316, 15696410), (1414, 14608540), (1645, 12557128), (1880, 10987487), (2020, 10225978), (2632, 7848205), (2828, 7304270), (3290, 6278564), (3535, 5843416), (4040, 5112989), (4747, 4351480), (5656, 3652135), (6580, 3139282), (7070, 2921708), (9494, 2175740), (13160, 1569641), (14140, 1460854), (15541, 1329160), (18988, 1087870), (23735, 870296), (28280, 730427), (31082, 664580), (33229, 621640), (37976, 543935), (47470, 435148), (62164, 332290), (66458, 310820), (77705, 265832), (94940, 217574), (108787, 189880), (124328, 166145), (132916, 155410)]