22778025

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 39664128

約数和(自身を除く): 16886103

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 97, 101, 155, 291, 303, 465, 485, 505, 775, 1455, 1515, 2325, 2425, 2525, 3007, 3131, 7275, 7575, 9021, 9393, 9797, 15035, 15655, 29391, 45105, 46965, 48985, 75175, 78275, 146955, 225525, 234825, 244925, 303707, 734775, 911121, 1518535, 4555605, 7592675, 22778025]

約数ペア:

[(1, 22778025), (3, 7592675), (5, 4555605), (15, 1518535), (25, 911121), (31, 734775), (75, 303707), (93, 244925), (97, 234825), (101, 225525), (155, 146955), (291, 78275), (303, 75175), (465, 48985), (485, 46965), (505, 45105), (775, 29391), (1455, 15655), (1515, 15035), (2325, 9797), (2425, 9393), (2525, 9021), (3007, 7575), (3131, 7275)]