280303270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{499}}^1$

素因数の和:697

約数の個数: 64

約数和(自身を含む): 567000000

約数和(自身を除く): 286696730

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 149, 290, 298, 377, 499, 745, 754, 998, 1490, 1885, 1937, 2495, 3770, 3874, 4321, 4990, 6487, 8642, 9685, 12974, 14471, 19370, 21605, 28942, 32435, 43210, 56173, 64870, 72355, 74351, 112346, 144710, 148702, 188123, 280865, 371755, 376246, 561730, 743510, 940615, 966563, 1881230, 1933126, 2156179, 4312358, 4832815, 9665630, 10780895, 21561790, 28030327, 56060654, 140151635, 280303270]

約数ペア:

[(1, 280303270), (2, 140151635), (5, 56060654), (10, 28030327), (13, 21561790), (26, 10780895), (29, 9665630), (58, 4832815), (65, 4312358), (130, 2156179), (145, 1933126), (149, 1881230), (290, 966563), (298, 940615), (377, 743510), (499, 561730), (745, 376246), (754, 371755), (998, 280865), (1490, 188123), (1885, 148702), (1937, 144710), (2495, 112346), (3770, 74351), (3874, 72355), (4321, 64870), (4990, 56173), (6487, 43210), (8642, 32435), (9685, 28942), (12974, 21605), (14471, 19370)]