831497120

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1$

素因数の和:670

約数の個数: 96

約数和(自身を含む): 2006726400

約数和(自身を除く): 1175229280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 157, 158, 160, 314, 316, 395, 419, 628, 632, 785, 790, 838, 1256, 1264, 1570, 1580, 1676, 2095, 2512, 2528, 3140, 3160, 3352, 4190, 5024, 6280, 6320, 6704, 8380, 12403, 12560, 12640, 13408, 16760, 24806, 25120, 33101, 33520, 49612, 62015, 65783, 66202, 67040, 99224, 124030, 131566, 132404, 165505, 198448, 248060, 263132, 264808, 328915, 331010, 396896, 496120, 526264, 529616, 657830, 662020, 992240, 1052528, 1059232, 1315660, 1324040, 1984480, 2105056, 2631320, 2648080, 5196857, 5262640, 5296160, 10393714, 10525280, 20787428, 25984285, 41574856, 51968570, 83149712, 103937140, 166299424, 207874280, 415748560, 831497120]

約数ペア:

[(1, 831497120), (2, 415748560), (4, 207874280), (5, 166299424), (8, 103937140), (10, 83149712), (16, 51968570), (20, 41574856), (32, 25984285), (40, 20787428), (79, 10525280), (80, 10393714), (157, 5296160), (158, 5262640), (160, 5196857), (314, 2648080), (316, 2631320), (395, 2105056), (419, 1984480), (628, 1324040), (632, 1315660), (785, 1059232), (790, 1052528), (838, 992240), (1256, 662020), (1264, 657830), (1570, 529616), (1580, 526264), (1676, 496120), (2095, 396896), (2512, 331010), (2528, 328915), (3140, 264808), (3160, 263132), (3352, 248060), (4190, 198448), (5024, 165505), (6280, 132404), (6320, 131566), (6704, 124030), (8380, 99224), (12403, 67040), (12560, 66202), (12640, 65783), (13408, 62015), (16760, 49612), (24806, 33520), (25120, 33101)]