20157003555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{647}}^1\times {\mathrm{811}}^1$

素因数の和:1676

約数の個数: 64

約数和(自身を含む): 35005436928

約数和(自身を除く): 14848433373

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 197, 591, 647, 811, 985, 1941, 2433, 2561, 2955, 3235, 4055, 7683, 8411, 9705, 10543, 12165, 12805, 25233, 31629, 38415, 42055, 52715, 126165, 127459, 158145, 159767, 382377, 479301, 524717, 637295, 798835, 1574151, 1656967, 1911885, 2076971, 2396505, 2623585, 4970901, 6230913, 6821321, 7870755, 8284835, 10384855, 20463963, 24854505, 31154565, 34106605, 102319815, 103369249, 310107747, 516846245, 1343800237, 1550538735, 4031400711, 6719001185, 20157003555]

約数ペア:

[(1, 20157003555), (3, 6719001185), (5, 4031400711), (13, 1550538735), (15, 1343800237), (39, 516846245), (65, 310107747), (195, 103369249), (197, 102319815), (591, 34106605), (647, 31154565), (811, 24854505), (985, 20463963), (1941, 10384855), (2433, 8284835), (2561, 7870755), (2955, 6821321), (3235, 6230913), (4055, 4970901), (7683, 2623585), (8411, 2396505), (9705, 2076971), (10543, 1911885), (12165, 1656967), (12805, 1574151), (25233, 798835), (31629, 637295), (38415, 524717), (42055, 479301), (52715, 382377), (126165, 159767), (127459, 158145)]