20509110

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1259}}^1$

素因数の和:1453

約数の個数: 48

約数和(自身を含む): 53660880

約数和(自身を除く): 33151770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 181, 362, 543, 905, 1086, 1259, 1629, 1810, 2518, 2715, 3258, 3777, 5430, 6295, 7554, 8145, 11331, 12590, 16290, 18885, 22662, 37770, 56655, 113310, 227879, 455758, 683637, 1139395, 1367274, 2050911, 2278790, 3418185, 4101822, 6836370, 10254555, 20509110]

約数ペア:

[(1, 20509110), (2, 10254555), (3, 6836370), (5, 4101822), (6, 3418185), (9, 2278790), (10, 2050911), (15, 1367274), (18, 1139395), (30, 683637), (45, 455758), (90, 227879), (181, 113310), (362, 56655), (543, 37770), (905, 22662), (1086, 18885), (1259, 16290), (1629, 12590), (1810, 11331), (2518, 8145), (2715, 7554), (3258, 6295), (3777, 5430)]