20104980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47869}}^1$

素因数の和:47888

約数の個数: 48

約数和(自身を含む): 64337280

約数和(自身を除く): 44232300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 47869, 95738, 143607, 191476, 239345, 287214, 335083, 478690, 574428, 670166, 718035, 957380, 1005249, 1340332, 1436070, 1675415, 2010498, 2872140, 3350830, 4020996, 5026245, 6701660, 10052490, 20104980]

約数ペア:

[(1, 20104980), (2, 10052490), (3, 6701660), (4, 5026245), (5, 4020996), (6, 3350830), (7, 2872140), (10, 2010498), (12, 1675415), (14, 1436070), (15, 1340332), (20, 1005249), (21, 957380), (28, 718035), (30, 670166), (35, 574428), (42, 478690), (60, 335083), (70, 287214), (84, 239345), (105, 191476), (140, 143607), (210, 95738), (420, 47869)]