31001960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{70459}}^1$

素因数の和:70481

約数の個数: 32

約数和(自身を含む): 76096800

約数和(自身を除く): 45094840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 70459, 140918, 281836, 352295, 563672, 704590, 775049, 1409180, 1550098, 2818360, 3100196, 3875245, 6200392, 7750490, 15500980, 31001960]

約数ペア:

[(1, 31001960), (2, 15500980), (4, 7750490), (5, 6200392), (8, 3875245), (10, 3100196), (11, 2818360), (20, 1550098), (22, 1409180), (40, 775049), (44, 704590), (55, 563672), (88, 352295), (110, 281836), (220, 140918), (440, 70459)]