3131560

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{991}}^1$

素因数の和:1081

約数の個数: 32

約数和(自身を含む): 7142400

約数和(自身を除く): 4010840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 991, 1580, 1982, 3160, 3964, 4955, 7928, 9910, 19820, 39640, 78289, 156578, 313156, 391445, 626312, 782890, 1565780, 3131560]

約数ペア:

[(1, 3131560), (2, 1565780), (4, 782890), (5, 626312), (8, 391445), (10, 313156), (20, 156578), (40, 78289), (79, 39640), (158, 19820), (316, 9910), (395, 7928), (632, 4955), (790, 3964), (991, 3160), (1580, 1982)]