131022815

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{797}}^1$

素因数の和:888

約数の個数: 48

約数和(自身を含む): 203049504

約数和(自身を除く): 72026689

約数列:

[1, 5, 7, 11, 35, 49, 55, 61, 77, 245, 305, 385, 427, 539, 671, 797, 2135, 2695, 2989, 3355, 3985, 4697, 5579, 8767, 14945, 23485, 27895, 32879, 39053, 43835, 48617, 61369, 164395, 195265, 243085, 306845, 340319, 429583, 534787, 1701595, 2147915, 2382233, 2673935, 3743509, 11911165, 18717545, 26204563, 131022815]

約数ペア:

[(1, 131022815), (5, 26204563), (7, 18717545), (11, 11911165), (35, 3743509), (49, 2673935), (55, 2382233), (61, 2147915), (77, 1701595), (245, 534787), (305, 429583), (385, 340319), (427, 306845), (539, 243085), (671, 195265), (797, 164395), (2135, 61369), (2695, 48617), (2989, 43835), (3355, 39053), (3985, 32879), (4697, 27895), (5579, 23485), (8767, 14945)]