281357256

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1\times {\mathrm{809}}^1$

素因数の和:1198

約数の個数: 64

約数和(自身を含む): 722779200

約数和(自身を除く): 441421944

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 337, 344, 516, 674, 809, 1011, 1032, 1348, 1618, 2022, 2427, 2696, 3236, 4044, 4854, 6472, 8088, 9708, 14491, 19416, 28982, 34787, 43473, 57964, 69574, 86946, 104361, 115928, 139148, 173892, 208722, 272633, 278296, 347784, 417444, 545266, 817899, 834888, 1090532, 1635798, 2181064, 3271596, 6543192, 11723219, 23446438, 35169657, 46892876, 70339314, 93785752, 140678628, 281357256]

約数ペア:

[(1, 281357256), (2, 140678628), (3, 93785752), (4, 70339314), (6, 46892876), (8, 35169657), (12, 23446438), (24, 11723219), (43, 6543192), (86, 3271596), (129, 2181064), (172, 1635798), (258, 1090532), (337, 834888), (344, 817899), (516, 545266), (674, 417444), (809, 347784), (1011, 278296), (1032, 272633), (1348, 208722), (1618, 173892), (2022, 139148), (2427, 115928), (2696, 104361), (3236, 86946), (4044, 69574), (4854, 57964), (6472, 43473), (8088, 34787), (9708, 28982), (14491, 19416)]