20260640

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{911}}^1$

素因数の和:1065

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 28002400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 911, 1112, 1390, 1822, 2224, 2780, 3644, 4448, 4555, 5560, 7288, 9110, 11120, 14576, 18220, 22240, 29152, 36440, 72880, 126629, 145760, 253258, 506516, 633145, 1013032, 1266290, 2026064, 2532580, 4052128, 5065160, 10130320, 20260640]

約数ペア:

[(1, 20260640), (2, 10130320), (4, 5065160), (5, 4052128), (8, 2532580), (10, 2026064), (16, 1266290), (20, 1013032), (32, 633145), (40, 506516), (80, 253258), (139, 145760), (160, 126629), (278, 72880), (556, 36440), (695, 29152), (911, 22240), (1112, 18220), (1390, 14576), (1822, 11120), (2224, 9110), (2780, 7288), (3644, 5560), (4448, 4555)]