257082008

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{54559}}^1$

素因数の和:54615

約数の個数: 32

約数和(自身を含む): 523776000

約数和(自身を除く): 266693992

約数列:

[1, 2, 4, 8, 19, 31, 38, 62, 76, 124, 152, 248, 589, 1178, 2356, 4712, 54559, 109118, 218236, 436472, 1036621, 1691329, 2073242, 3382658, 4146484, 6765316, 8292968, 13530632, 32135251, 64270502, 128541004, 257082008]

約数ペア:

[(1, 257082008), (2, 128541004), (4, 64270502), (8, 32135251), (19, 13530632), (31, 8292968), (38, 6765316), (62, 4146484), (76, 3382658), (124, 2073242), (152, 1691329), (248, 1036621), (589, 436472), (1178, 218236), (2356, 109118), (4712, 54559)]