18662995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 6738605

約数列:

[1, 5, 13, 41, 47, 65, 149, 205, 235, 533, 611, 745, 1927, 1937, 2665, 3055, 6109, 7003, 9635, 9685, 25051, 30545, 35015, 79417, 91039, 125255, 287123, 397085, 455195, 1435615, 3732599, 18662995]

約数ペア:

[(1, 18662995), (5, 3732599), (13, 1435615), (41, 455195), (47, 397085), (65, 287123), (149, 125255), (205, 91039), (235, 79417), (533, 35015), (611, 30545), (745, 25051), (1927, 9685), (1937, 9635), (2665, 7003), (3055, 6109)]