15541540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3581}}^1$

素因数の和:3628

約数の個数: 48

約数和(自身を含む): 38513664

約数和(自身を除く): 22972124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 3581, 4340, 7162, 14324, 17905, 25067, 35810, 50134, 71620, 100268, 111011, 125335, 222022, 250670, 444044, 501340, 555055, 777077, 1110110, 1554154, 2220220, 3108308, 3885385, 7770770, 15541540]

約数ペア:

[(1, 15541540), (2, 7770770), (4, 3885385), (5, 3108308), (7, 2220220), (10, 1554154), (14, 1110110), (20, 777077), (28, 555055), (31, 501340), (35, 444044), (62, 250670), (70, 222022), (124, 125335), (140, 111011), (155, 100268), (217, 71620), (310, 50134), (434, 35810), (620, 25067), (868, 17905), (1085, 14324), (2170, 7162), (3581, 4340)]