19225220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2591}}^1$

素因数の和:2660

約数の個数: 48

約数和(自身を含む): 47029248

約数和(自身を除く): 27804028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 2591, 3710, 5182, 7420, 10364, 12955, 18137, 25910, 36274, 51820, 72548, 90685, 137323, 181370, 274646, 362740, 549292, 686615, 961261, 1373230, 1922522, 2746460, 3845044, 4806305, 9612610, 19225220]

約数ペア:

[(1, 19225220), (2, 9612610), (4, 4806305), (5, 3845044), (7, 2746460), (10, 1922522), (14, 1373230), (20, 961261), (28, 686615), (35, 549292), (53, 362740), (70, 274646), (106, 181370), (140, 137323), (212, 90685), (265, 72548), (371, 51820), (530, 36274), (742, 25910), (1060, 18137), (1484, 12955), (1855, 10364), (2591, 7420), (3710, 5182)]