2051920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1973}}^1$

素因数の和:1999

約数の個数: 40

約数和(自身を含む): 5140296

約数和(自身を除く): 3088376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1973, 3946, 7892, 9865, 15784, 19730, 25649, 31568, 39460, 51298, 78920, 102596, 128245, 157840, 205192, 256490, 410384, 512980, 1025960, 2051920]

約数ペア:

[(1, 2051920), (2, 1025960), (4, 512980), (5, 410384), (8, 256490), (10, 205192), (13, 157840), (16, 128245), (20, 102596), (26, 78920), (40, 51298), (52, 39460), (65, 31568), (80, 25649), (104, 19730), (130, 15784), (208, 9865), (260, 7892), (520, 3946), (1040, 1973)]