31065880

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{10639}}^1$

素因数の和:10723

約数の個数: 32

約数和(自身を含む): 70862400

約数和(自身を除く): 39796520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 10639, 21278, 42556, 53195, 85112, 106390, 212780, 425560, 776647, 1553294, 3106588, 3883235, 6213176, 7766470, 15532940, 31065880]

約数ペア:

[(1, 31065880), (2, 15532940), (4, 7766470), (5, 6213176), (8, 3883235), (10, 3106588), (20, 1553294), (40, 776647), (73, 425560), (146, 212780), (292, 106390), (365, 85112), (584, 53195), (730, 42556), (1460, 21278), (2920, 10639)]