247432880

素因数分解:

$2^4\times 5^1\times {\mathrm{991}}^1\times {\mathrm{3121}}^1$

素因数の和:4125

約数の個数: 40

約数和(自身を含む): 576046464

約数和(自身を除く): 328613584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991, 1982, 3121, 3964, 4955, 6242, 7928, 9910, 12484, 15605, 15856, 19820, 24968, 31210, 39640, 49936, 62420, 79280, 124840, 249680, 3092911, 6185822, 12371644, 15464555, 24743288, 30929110, 49486576, 61858220, 123716440, 247432880]

約数ペア:

[(1, 247432880), (2, 123716440), (4, 61858220), (5, 49486576), (8, 30929110), (10, 24743288), (16, 15464555), (20, 12371644), (40, 6185822), (80, 3092911), (991, 249680), (1982, 124840), (3121, 79280), (3964, 62420), (4955, 49936), (6242, 39640), (7928, 31210), (9910, 24968), (12484, 19820), (15605, 15856)]