42890780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{941}}^1$

素因数の和:1046

約数の個数: 48

約数和(自身を含む): 94004064

約数和(自身を除く): 51113284

約数列:

[1, 2, 4, 5, 10, 20, 43, 53, 86, 106, 172, 212, 215, 265, 430, 530, 860, 941, 1060, 1882, 2279, 3764, 4558, 4705, 9116, 9410, 11395, 18820, 22790, 40463, 45580, 49873, 80926, 99746, 161852, 199492, 202315, 249365, 404630, 498730, 809260, 997460, 2144539, 4289078, 8578156, 10722695, 21445390, 42890780]

約数ペア:

[(1, 42890780), (2, 21445390), (4, 10722695), (5, 8578156), (10, 4289078), (20, 2144539), (43, 997460), (53, 809260), (86, 498730), (106, 404630), (172, 249365), (212, 202315), (215, 199492), (265, 161852), (430, 99746), (530, 80926), (860, 49873), (941, 45580), (1060, 40463), (1882, 22790), (2279, 18820), (3764, 11395), (4558, 9410), (4705, 9116)]