78860440

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 182217600

約数和(自身を除く): 103357160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 113, 146, 226, 239, 292, 365, 452, 478, 565, 584, 730, 904, 956, 1130, 1195, 1460, 1912, 2260, 2390, 2920, 4520, 4780, 8249, 9560, 16498, 17447, 27007, 32996, 34894, 41245, 54014, 65992, 69788, 82490, 87235, 108028, 135035, 139576, 164980, 174470, 216056, 270070, 329960, 348940, 540140, 697880, 1080280, 1971511, 3943022, 7886044, 9857555, 15772088, 19715110, 39430220, 78860440]

約数ペア:

[(1, 78860440), (2, 39430220), (4, 19715110), (5, 15772088), (8, 9857555), (10, 7886044), (20, 3943022), (40, 1971511), (73, 1080280), (113, 697880), (146, 540140), (226, 348940), (239, 329960), (292, 270070), (365, 216056), (452, 174470), (478, 164980), (565, 139576), (584, 135035), (730, 108028), (904, 87235), (956, 82490), (1130, 69788), (1195, 65992), (1460, 54014), (1912, 41245), (2260, 34894), (2390, 32996), (2920, 27007), (4520, 17447), (4780, 16498), (8249, 9560)]