251316008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{6217}}^1$

素因数の和:6417

約数の個数: 32

約数和(自身を含む): 489480960

約数和(自身を除く): 238164952

約数列:

[1, 2, 4, 8, 31, 62, 124, 163, 248, 326, 652, 1304, 5053, 6217, 10106, 12434, 20212, 24868, 40424, 49736, 192727, 385454, 770908, 1013371, 1541816, 2026742, 4053484, 8106968, 31414501, 62829002, 125658004, 251316008]

約数ペア:

[(1, 251316008), (2, 125658004), (4, 62829002), (8, 31414501), (31, 8106968), (62, 4053484), (124, 2026742), (163, 1541816), (248, 1013371), (326, 770908), (652, 385454), (1304, 192727), (5053, 49736), (6217, 40424), (10106, 24868), (12434, 20212)]