2120820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2719}}^1$

素因数の和:2744

約数の個数: 48

約数和(自身を含む): 6397440

約数和(自身を除く): 4276620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 2719, 5438, 8157, 10876, 13595, 16314, 27190, 32628, 35347, 40785, 54380, 70694, 81570, 106041, 141388, 163140, 176735, 212082, 353470, 424164, 530205, 706940, 1060410, 2120820]

約数ペア:

[(1, 2120820), (2, 1060410), (3, 706940), (4, 530205), (5, 424164), (6, 353470), (10, 212082), (12, 176735), (13, 163140), (15, 141388), (20, 106041), (26, 81570), (30, 70694), (39, 54380), (52, 40785), (60, 35347), (65, 32628), (78, 27190), (130, 16314), (156, 13595), (195, 10876), (260, 8157), (390, 5438), (780, 2719)]