39894640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12163}}^1$

素因数の和:12217

約数の個数: 40

約数和(自身を含む): 95025168

約数和(自身を除く): 55130528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 12163, 24326, 48652, 60815, 97304, 121630, 194608, 243260, 486520, 498683, 973040, 997366, 1994732, 2493415, 3989464, 4986830, 7978928, 9973660, 19947320, 39894640]

約数ペア:

[(1, 39894640), (2, 19947320), (4, 9973660), (5, 7978928), (8, 4986830), (10, 3989464), (16, 2493415), (20, 1994732), (40, 997366), (41, 973040), (80, 498683), (82, 486520), (164, 243260), (205, 194608), (328, 121630), (410, 97304), (656, 60815), (820, 48652), (1640, 24326), (3280, 12163)]