65720680

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{3037}}^1$

素因数の和:3589

約数の個数: 32

約数和(自身を含む): 148193640

約数和(自身を除く): 82472960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 1082, 2164, 2705, 3037, 4328, 5410, 6074, 10820, 12148, 15185, 21640, 24296, 30370, 60740, 121480, 1643017, 3286034, 6572068, 8215085, 13144136, 16430170, 32860340, 65720680]

約数ペア:

[(1, 65720680), (2, 32860340), (4, 16430170), (5, 13144136), (8, 8215085), (10, 6572068), (20, 3286034), (40, 1643017), (541, 121480), (1082, 60740), (2164, 30370), (2705, 24296), (3037, 21640), (4328, 15185), (5410, 12148), (6074, 10820)]