20779005

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 38610432

約数和(自身を除く): 17831427

約数列:

[1, 3, 5, 13, 15, 23, 39, 41, 65, 69, 113, 115, 123, 195, 205, 299, 339, 345, 533, 565, 615, 897, 943, 1469, 1495, 1599, 1695, 2599, 2665, 2829, 4407, 4485, 4633, 4715, 7345, 7797, 7995, 12259, 12995, 13899, 14145, 22035, 23165, 33787, 36777, 38985, 60229, 61295, 69495, 101361, 106559, 168935, 180687, 183885, 301145, 319677, 506805, 532795, 903435, 1385267, 1598385, 4155801, 6926335, 20779005]

約数ペア:

[(1, 20779005), (3, 6926335), (5, 4155801), (13, 1598385), (15, 1385267), (23, 903435), (39, 532795), (41, 506805), (65, 319677), (69, 301145), (113, 183885), (115, 180687), (123, 168935), (195, 106559), (205, 101361), (299, 69495), (339, 61295), (345, 60229), (533, 38985), (565, 36777), (615, 33787), (897, 23165), (943, 22035), (1469, 14145), (1495, 13899), (1599, 12995), (1695, 12259), (2599, 7995), (2665, 7797), (2829, 7345), (4407, 4715), (4485, 4633)]