2550407720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1\times {\mathrm{463}}^1$

素因数の和:775

約数の個数: 128

約数和(自身を含む): 6670909440

約数和(自身を除く): 4120501720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 191, 206, 280, 382, 412, 463, 515, 721, 764, 824, 926, 955, 1030, 1337, 1442, 1528, 1852, 1910, 2060, 2315, 2674, 2884, 3241, 3605, 3704, 3820, 4120, 4630, 5348, 5768, 6482, 6685, 7210, 7640, 9260, 10696, 12964, 13370, 14420, 16205, 18520, 19673, 25928, 26740, 28840, 32410, 39346, 47689, 53480, 64820, 78692, 88433, 95378, 98365, 129640, 137711, 157384, 176866, 190756, 196730, 238445, 275422, 333823, 353732, 381512, 393460, 442165, 476890, 550844, 619031, 667646, 688555, 707464, 786920, 884330, 953780, 1101688, 1238062, 1335292, 1377110, 1669115, 1768660, 1907560, 2476124, 2670584, 2754220, 3095155, 3338230, 3537320, 4952248, 5508440, 6190310, 6676460, 9108599, 12380620, 13352920, 18217198, 24761240, 36434396, 45542995, 63760193, 72868792, 91085990, 127520386, 182171980, 255040772, 318800965, 364343960, 510081544, 637601930, 1275203860, 2550407720]

約数ペア:

[(1, 2550407720), (2, 1275203860), (4, 637601930), (5, 510081544), (7, 364343960), (8, 318800965), (10, 255040772), (14, 182171980), (20, 127520386), (28, 91085990), (35, 72868792), (40, 63760193), (56, 45542995), (70, 36434396), (103, 24761240), (140, 18217198), (191, 13352920), (206, 12380620), (280, 9108599), (382, 6676460), (412, 6190310), (463, 5508440), (515, 4952248), (721, 3537320), (764, 3338230), (824, 3095155), (926, 2754220), (955, 2670584), (1030, 2476124), (1337, 1907560), (1442, 1768660), (1528, 1669115), (1852, 1377110), (1910, 1335292), (2060, 1238062), (2315, 1101688), (2674, 953780), (2884, 884330), (3241, 786920), (3605, 707464), (3704, 688555), (3820, 667646), (4120, 619031), (4630, 550844), (5348, 476890), (5768, 442165), (6482, 393460), (6685, 381512), (7210, 353732), (7640, 333823), (9260, 275422), (10696, 238445), (12964, 196730), (13370, 190756), (14420, 176866), (16205, 157384), (18520, 137711), (19673, 129640), (25928, 98365), (26740, 95378), (28840, 88433), (32410, 78692), (39346, 64820), (47689, 53480)]