16858980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{409}}^1$

素因数の和:653

約数の個数: 72

約数和(自身を含む): 51487800

約数和(自身を除く): 34628820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 409, 458, 687, 818, 916, 1145, 1227, 1374, 1636, 2045, 2061, 2290, 2454, 2748, 3435, 3681, 4090, 4122, 4580, 4908, 6135, 6870, 7362, 8180, 8244, 10305, 12270, 13740, 14724, 18405, 20610, 24540, 36810, 41220, 73620, 93661, 187322, 280983, 374644, 468305, 561966, 842949, 936610, 1123932, 1404915, 1685898, 1873220, 2809830, 3371796, 4214745, 5619660, 8429490, 16858980]

約数ペア:

[(1, 16858980), (2, 8429490), (3, 5619660), (4, 4214745), (5, 3371796), (6, 2809830), (9, 1873220), (10, 1685898), (12, 1404915), (15, 1123932), (18, 936610), (20, 842949), (30, 561966), (36, 468305), (45, 374644), (60, 280983), (90, 187322), (180, 93661), (229, 73620), (409, 41220), (458, 36810), (687, 24540), (818, 20610), (916, 18405), (1145, 14724), (1227, 13740), (1374, 12270), (1636, 10305), (2045, 8244), (2061, 8180), (2290, 7362), (2454, 6870), (2748, 6135), (3435, 4908), (3681, 4580), (4090, 4122)]