129671840

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{3391}}^1$

素因数の和:3645

約数の個数: 48

約数和(自身を含む): 307722240

約数和(自身を除く): 178050400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 956, 1195, 1912, 2390, 3391, 3824, 4780, 6782, 7648, 9560, 13564, 16955, 19120, 27128, 33910, 38240, 54256, 67820, 108512, 135640, 271280, 542560, 810449, 1620898, 3241796, 4052245, 6483592, 8104490, 12967184, 16208980, 25934368, 32417960, 64835920, 129671840]

約数ペア:

[(1, 129671840), (2, 64835920), (4, 32417960), (5, 25934368), (8, 16208980), (10, 12967184), (16, 8104490), (20, 6483592), (32, 4052245), (40, 3241796), (80, 1620898), (160, 810449), (239, 542560), (478, 271280), (956, 135640), (1195, 108512), (1912, 67820), (2390, 54256), (3391, 38240), (3824, 33910), (4780, 27128), (6782, 19120), (7648, 16955), (9560, 13564)]