311960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{709}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 766800

約数和(自身を除く): 454840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 709, 1418, 2836, 3545, 5672, 7090, 7799, 14180, 15598, 28360, 31196, 38995, 62392, 77990, 155980, 311960]

約数ペア:

[(1, 311960), (2, 155980), (4, 77990), (5, 62392), (8, 38995), (10, 31196), (11, 28360), (20, 15598), (22, 14180), (40, 7799), (44, 7090), (55, 5672), (88, 3545), (110, 2836), (220, 1418), (440, 709)]