18820860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4297}}^1$

素因数の和:4382

約数の個数: 48

約数和(自身を含む): 53432736

約数和(自身を除く): 34611876

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4297, 4380, 8594, 12891, 17188, 21485, 25782, 42970, 51564, 64455, 85940, 128910, 257820, 313681, 627362, 941043, 1254724, 1568405, 1882086, 3136810, 3764172, 4705215, 6273620, 9410430, 18820860]

約数ペア:

[(1, 18820860), (2, 9410430), (3, 6273620), (4, 4705215), (5, 3764172), (6, 3136810), (10, 1882086), (12, 1568405), (15, 1254724), (20, 941043), (30, 627362), (60, 313681), (73, 257820), (146, 128910), (219, 85940), (292, 64455), (365, 51564), (438, 42970), (730, 25782), (876, 21485), (1095, 17188), (1460, 12891), (2190, 8594), (4297, 4380)]