278889280

素因数分解:

$2^6\times 5^1\times {\mathrm{101}}^1\times {\mathrm{8629}}^1$

素因数の和:8747

約数の個数: 56

約数和(自身を含む): 670758120

約数和(自身を除く): 391868840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 160, 202, 320, 404, 505, 808, 1010, 1616, 2020, 3232, 4040, 6464, 8080, 8629, 16160, 17258, 32320, 34516, 43145, 69032, 86290, 138064, 172580, 276128, 345160, 552256, 690320, 871529, 1380640, 1743058, 2761280, 3486116, 4357645, 6972232, 8715290, 13944464, 17430580, 27888928, 34861160, 55777856, 69722320, 139444640, 278889280]

約数ペア:

[(1, 278889280), (2, 139444640), (4, 69722320), (5, 55777856), (8, 34861160), (10, 27888928), (16, 17430580), (20, 13944464), (32, 8715290), (40, 6972232), (64, 4357645), (80, 3486116), (101, 2761280), (160, 1743058), (202, 1380640), (320, 871529), (404, 690320), (505, 552256), (808, 345160), (1010, 276128), (1616, 172580), (2020, 138064), (3232, 86290), (4040, 69032), (6464, 43145), (8080, 34516), (8629, 32320), (16160, 17258)]