840910240

素因数分解:

$2^5\times 5^1\times {\mathrm{251}}^1\times {\mathrm{20939}}^1$

素因数の和:21205

約数の個数: 48

約数和(自身を含む): 1994660640

約数和(自身を除く): 1153750400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 251, 502, 1004, 1255, 2008, 2510, 4016, 5020, 8032, 10040, 20080, 20939, 40160, 41878, 83756, 104695, 167512, 209390, 335024, 418780, 670048, 837560, 1675120, 3350240, 5255689, 10511378, 21022756, 26278445, 42045512, 52556890, 84091024, 105113780, 168182048, 210227560, 420455120, 840910240]

約数ペア:

[(1, 840910240), (2, 420455120), (4, 210227560), (5, 168182048), (8, 105113780), (10, 84091024), (16, 52556890), (20, 42045512), (32, 26278445), (40, 21022756), (80, 10511378), (160, 5255689), (251, 3350240), (502, 1675120), (1004, 837560), (1255, 670048), (2008, 418780), (2510, 335024), (4016, 209390), (5020, 167512), (8032, 104695), (10040, 83756), (20080, 41878), (20939, 40160)]