642723201

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:551

約数の個数: 64

約数和(自身を含む): 1041984000

約数和(自身を除く): 399260799

約数列:

[1, 3, 9, 23, 27, 29, 69, 87, 89, 207, 261, 267, 401, 621, 667, 783, 801, 1203, 2001, 2047, 2403, 2581, 3609, 6003, 6141, 7743, 9223, 10827, 11629, 18009, 18423, 23229, 27669, 34887, 35689, 55269, 59363, 69687, 83007, 104661, 107067, 178089, 249021, 267467, 313983, 321201, 534267, 802401, 820847, 963603, 1034981, 1602801, 2407203, 2462541, 3104943, 7221609, 7387623, 9314829, 22162869, 23804563, 27944487, 71413689, 214241067, 642723201]

約数ペア:

[(1, 642723201), (3, 214241067), (9, 71413689), (23, 27944487), (27, 23804563), (29, 22162869), (69, 9314829), (87, 7387623), (89, 7221609), (207, 3104943), (261, 2462541), (267, 2407203), (401, 1602801), (621, 1034981), (667, 963603), (783, 820847), (801, 802401), (1203, 534267), (2001, 321201), (2047, 313983), (2403, 267467), (2581, 249021), (3609, 178089), (6003, 107067), (6141, 104661), (7743, 83007), (9223, 69687), (10827, 59363), (11629, 55269), (18009, 35689), (18423, 34887), (23229, 27669)]