131225728

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{33071}}^1$

素因数の和:33116

約数の個数: 32

約数和(自身を含む): 269867520

約数和(自身を除く): 138641792

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 33071, 66142, 132284, 264568, 529136, 1025201, 1058272, 2050402, 2116544, 4100804, 4233088, 8201608, 16403216, 32806432, 65612864, 131225728]

約数ペア:

[(1, 131225728), (2, 65612864), (4, 32806432), (8, 16403216), (16, 8201608), (31, 4233088), (32, 4100804), (62, 2116544), (64, 2050402), (124, 1058272), (128, 1025201), (248, 529136), (496, 264568), (992, 132284), (1984, 66142), (3968, 33071)]