28640155

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 38071296

約数和(自身を除く): 9431141

約数列:

[1, 5, 17, 47, 67, 85, 107, 235, 335, 535, 799, 1139, 1819, 3149, 3995, 5029, 5695, 7169, 9095, 15745, 25145, 35845, 53533, 85493, 121873, 267665, 336943, 427465, 609365, 1684715, 5728031, 28640155]

約数ペア:

[(1, 28640155), (5, 5728031), (17, 1684715), (47, 609365), (67, 427465), (85, 336943), (107, 267665), (235, 121873), (335, 85493), (535, 53533), (799, 35845), (1139, 25145), (1819, 15745), (3149, 9095), (3995, 7169), (5029, 5695)]