198461965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{389}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 264176640

約数和(自身を除く): 65714675

約数列:

[1, 5, 13, 47, 65, 167, 235, 389, 611, 835, 1945, 2171, 3055, 5057, 7849, 10855, 18283, 25285, 39245, 64963, 91415, 102037, 237679, 324815, 510185, 844519, 1188395, 3053261, 4222595, 15266305, 39692393, 198461965]

約数ペア:

[(1, 198461965), (5, 39692393), (13, 15266305), (47, 4222595), (65, 3053261), (167, 1188395), (235, 844519), (389, 510185), (611, 324815), (835, 237679), (1945, 102037), (2171, 91415), (3055, 64963), (5057, 39245), (7849, 25285), (10855, 18283)]