20065340

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16447}}^1$

素因数の和:16517

約数の個数: 24

約数和(自身を含む): 42830592

約数和(自身を除く): 22765252

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 16447, 32894, 65788, 82235, 164470, 328940, 1003267, 2006534, 4013068, 5016335, 10032670, 20065340]

約数ペア:

[(1, 20065340), (2, 10032670), (4, 5016335), (5, 4013068), (10, 2006534), (20, 1003267), (61, 328940), (122, 164470), (244, 82235), (305, 65788), (610, 32894), (1220, 16447)]