128972912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{571}}^1\times {\mathrm{743}}^1$

素因数の和:1341

約数の個数: 40

約数和(自身を含む): 263852160

約数和(自身を除く): 134879248

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 571, 743, 1142, 1486, 2284, 2972, 4568, 5944, 9136, 10849, 11888, 14117, 21698, 28234, 43396, 56468, 86792, 112936, 173584, 225872, 424253, 848506, 1697012, 3394024, 6788048, 8060807, 16121614, 32243228, 64486456, 128972912]

約数ペア:

[(1, 128972912), (2, 64486456), (4, 32243228), (8, 16121614), (16, 8060807), (19, 6788048), (38, 3394024), (76, 1697012), (152, 848506), (304, 424253), (571, 225872), (743, 173584), (1142, 112936), (1486, 86792), (2284, 56468), (2972, 43396), (4568, 28234), (5944, 21698), (9136, 14117), (10849, 11888)]