19801360

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{6037}}^1$

素因数の和:6091

約数の個数: 40

約数和(自身を含む): 47168856

約数和(自身を除く): 27367496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 6037, 12074, 24148, 30185, 48296, 60370, 96592, 120740, 241480, 247517, 482960, 495034, 990068, 1237585, 1980136, 2475170, 3960272, 4950340, 9900680, 19801360]

約数ペア:

[(1, 19801360), (2, 9900680), (4, 4950340), (5, 3960272), (8, 2475170), (10, 1980136), (16, 1237585), (20, 990068), (40, 495034), (41, 482960), (80, 247517), (82, 241480), (164, 120740), (205, 96592), (328, 60370), (410, 48296), (656, 30185), (820, 24148), (1640, 12074), (3280, 6037)]