20782788

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1049}}^1$

素因数の和:1196

約数の個数: 48

約数和(自身を含む): 52684800

約数和(自身を除く): 31902012

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 127, 156, 254, 381, 508, 762, 1049, 1524, 1651, 2098, 3147, 3302, 4196, 4953, 6294, 6604, 9906, 12588, 13637, 19812, 27274, 40911, 54548, 81822, 133223, 163644, 266446, 399669, 532892, 799338, 1598676, 1731899, 3463798, 5195697, 6927596, 10391394, 20782788]

約数ペア:

[(1, 20782788), (2, 10391394), (3, 6927596), (4, 5195697), (6, 3463798), (12, 1731899), (13, 1598676), (26, 799338), (39, 532892), (52, 399669), (78, 266446), (127, 163644), (156, 133223), (254, 81822), (381, 54548), (508, 40911), (762, 27274), (1049, 19812), (1524, 13637), (1651, 12588), (2098, 9906), (3147, 6604), (3302, 6294), (4196, 4953)]