83640440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{673}}^1$

素因数の和:936

約数の個数: 64

約数和(自身を含む): 203817600

約数和(自身を除く): 120177160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 239, 260, 478, 520, 673, 956, 1195, 1346, 1912, 2390, 2692, 3107, 3365, 4780, 5384, 6214, 6730, 8749, 9560, 12428, 13460, 15535, 17498, 24856, 26920, 31070, 34996, 43745, 62140, 69992, 87490, 124280, 160847, 174980, 321694, 349960, 643388, 804235, 1286776, 1608470, 2091011, 3216940, 4182022, 6433880, 8364044, 10455055, 16728088, 20910110, 41820220, 83640440]

約数ペア:

[(1, 83640440), (2, 41820220), (4, 20910110), (5, 16728088), (8, 10455055), (10, 8364044), (13, 6433880), (20, 4182022), (26, 3216940), (40, 2091011), (52, 1608470), (65, 1286776), (104, 804235), (130, 643388), (239, 349960), (260, 321694), (478, 174980), (520, 160847), (673, 124280), (956, 87490), (1195, 69992), (1346, 62140), (1912, 43745), (2390, 34996), (2692, 31070), (3107, 26920), (3365, 24856), (4780, 17498), (5384, 15535), (6214, 13460), (6730, 12428), (8749, 9560)]