31181480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{70867}}^1$

素因数の和:70889

約数の個数: 32

約数和(自身を含む): 76537440

約数和(自身を除く): 45355960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 70867, 141734, 283468, 354335, 566936, 708670, 779537, 1417340, 1559074, 2834680, 3118148, 3897685, 6236296, 7795370, 15590740, 31181480]

約数ペア:

[(1, 31181480), (2, 15590740), (4, 7795370), (5, 6236296), (8, 3897685), (10, 3118148), (11, 2834680), (20, 1559074), (22, 1417340), (40, 779537), (44, 708670), (55, 566936), (88, 354335), (110, 283468), (220, 141734), (440, 70867)]