128443888

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{307}}^1\times {\mathrm{331}}^1$

素因数の和:725

約数の個数: 40

約数和(自身を含む): 253594880

約数和(自身を除く): 125150992

約数列:

[1, 2, 4, 8, 16, 79, 158, 307, 316, 331, 614, 632, 662, 1228, 1264, 1324, 2456, 2648, 4912, 5296, 24253, 26149, 48506, 52298, 97012, 101617, 104596, 194024, 203234, 209192, 388048, 406468, 418384, 812936, 1625872, 8027743, 16055486, 32110972, 64221944, 128443888]

約数ペア:

[(1, 128443888), (2, 64221944), (4, 32110972), (8, 16055486), (16, 8027743), (79, 1625872), (158, 812936), (307, 418384), (316, 406468), (331, 388048), (614, 209192), (632, 203234), (662, 194024), (1228, 104596), (1264, 101617), (1324, 97012), (2456, 52298), (2648, 48506), (4912, 26149), (5296, 24253)]