18870660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2557}}^1$

素因数の和:2613

約数の個数: 72

約数和(自身を含む): 58660056

約数和(自身を除く): 39789396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2557, 3690, 5114, 7380, 7671, 10228, 12785, 15342, 23013, 25570, 30684, 38355, 46026, 51140, 76710, 92052, 104837, 115065, 153420, 209674, 230130, 314511, 419348, 460260, 524185, 629022, 943533, 1048370, 1258044, 1572555, 1887066, 2096740, 3145110, 3774132, 4717665, 6290220, 9435330, 18870660]

約数ペア:

[(1, 18870660), (2, 9435330), (3, 6290220), (4, 4717665), (5, 3774132), (6, 3145110), (9, 2096740), (10, 1887066), (12, 1572555), (15, 1258044), (18, 1048370), (20, 943533), (30, 629022), (36, 524185), (41, 460260), (45, 419348), (60, 314511), (82, 230130), (90, 209674), (123, 153420), (164, 115065), (180, 104837), (205, 92052), (246, 76710), (369, 51140), (410, 46026), (492, 38355), (615, 30684), (738, 25570), (820, 23013), (1230, 15342), (1476, 12785), (1845, 10228), (2460, 7671), (2557, 7380), (3690, 5114)]