27901980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{409}}^1$

素因数の和:803

約数の個数: 72

約数和(自身を含む): 85066800

約数和(自身を除く): 57164820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 379, 409, 758, 818, 1137, 1227, 1516, 1636, 1895, 2045, 2274, 2454, 3411, 3681, 3790, 4090, 4548, 4908, 5685, 6135, 6822, 7362, 7580, 8180, 11370, 12270, 13644, 14724, 17055, 18405, 22740, 24540, 34110, 36810, 68220, 73620, 155011, 310022, 465033, 620044, 775055, 930066, 1395099, 1550110, 1860132, 2325165, 2790198, 3100220, 4650330, 5580396, 6975495, 9300660, 13950990, 27901980]

約数ペア:

[(1, 27901980), (2, 13950990), (3, 9300660), (4, 6975495), (5, 5580396), (6, 4650330), (9, 3100220), (10, 2790198), (12, 2325165), (15, 1860132), (18, 1550110), (20, 1395099), (30, 930066), (36, 775055), (45, 620044), (60, 465033), (90, 310022), (180, 155011), (379, 73620), (409, 68220), (758, 36810), (818, 34110), (1137, 24540), (1227, 22740), (1516, 18405), (1636, 17055), (1895, 14724), (2045, 13644), (2274, 12270), (2454, 11370), (3411, 8180), (3681, 7580), (3790, 7362), (4090, 6822), (4548, 6135), (4908, 5685)]