80720880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1061}}^1$

素因数の和:1394

約数の個数: 80

約数和(自身を含む): 251260704

約数和(自身を除く): 170539824

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 317, 634, 951, 1061, 1268, 1585, 1902, 2122, 2536, 3170, 3183, 3804, 4244, 4755, 5072, 5305, 6340, 6366, 7608, 8488, 9510, 10610, 12680, 12732, 15216, 15915, 16976, 19020, 21220, 25360, 25464, 31830, 38040, 42440, 50928, 63660, 76080, 84880, 127320, 254640, 336337, 672674, 1009011, 1345348, 1681685, 2018022, 2690696, 3363370, 4036044, 5045055, 5381392, 6726740, 8072088, 10090110, 13453480, 16144176, 20180220, 26906960, 40360440, 80720880]

約数ペア:

[(1, 80720880), (2, 40360440), (3, 26906960), (4, 20180220), (5, 16144176), (6, 13453480), (8, 10090110), (10, 8072088), (12, 6726740), (15, 5381392), (16, 5045055), (20, 4036044), (24, 3363370), (30, 2690696), (40, 2018022), (48, 1681685), (60, 1345348), (80, 1009011), (120, 672674), (240, 336337), (317, 254640), (634, 127320), (951, 84880), (1061, 76080), (1268, 63660), (1585, 50928), (1902, 42440), (2122, 38040), (2536, 31830), (3170, 25464), (3183, 25360), (3804, 21220), (4244, 19020), (4755, 16976), (5072, 15915), (5305, 15216), (6340, 12732), (6366, 12680), (7608, 10610), (8488, 9510)]