39984280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2341}}^1$

素因数の和:2420

約数の個数: 64

約数和(自身を含む): 104546880

約数和(自身を除く): 64562600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1708, 2135, 2341, 2440, 3416, 4270, 4682, 8540, 9364, 11705, 16387, 17080, 18728, 23410, 32774, 46820, 65548, 81935, 93640, 131096, 142801, 163870, 285602, 327740, 571204, 655480, 714005, 999607, 1142408, 1428010, 1999214, 2856020, 3998428, 4998035, 5712040, 7996856, 9996070, 19992140, 39984280]

約数ペア:

[(1, 39984280), (2, 19992140), (4, 9996070), (5, 7996856), (7, 5712040), (8, 4998035), (10, 3998428), (14, 2856020), (20, 1999214), (28, 1428010), (35, 1142408), (40, 999607), (56, 714005), (61, 655480), (70, 571204), (122, 327740), (140, 285602), (244, 163870), (280, 142801), (305, 131096), (427, 93640), (488, 81935), (610, 65548), (854, 46820), (1220, 32774), (1708, 23410), (2135, 18728), (2341, 17080), (2440, 16387), (3416, 11705), (4270, 9364), (4682, 8540)]