18171440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{877}}^1$

素因数の和:934

約数の個数: 80

約数和(自身を含む): 49645632

約数和(自身を除く): 31474192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 877, 1036, 1295, 1480, 1754, 2072, 2590, 2960, 3508, 4144, 4385, 5180, 6139, 7016, 8770, 10360, 12278, 14032, 17540, 20720, 24556, 30695, 32449, 35080, 49112, 61390, 64898, 70160, 98224, 122780, 129796, 162245, 227143, 245560, 259592, 324490, 454286, 491120, 519184, 648980, 908572, 1135715, 1297960, 1817144, 2271430, 2595920, 3634288, 4542860, 9085720, 18171440]

約数ペア:

[(1, 18171440), (2, 9085720), (4, 4542860), (5, 3634288), (7, 2595920), (8, 2271430), (10, 1817144), (14, 1297960), (16, 1135715), (20, 908572), (28, 648980), (35, 519184), (37, 491120), (40, 454286), (56, 324490), (70, 259592), (74, 245560), (80, 227143), (112, 162245), (140, 129796), (148, 122780), (185, 98224), (259, 70160), (280, 64898), (296, 61390), (370, 49112), (518, 35080), (560, 32449), (592, 30695), (740, 24556), (877, 20720), (1036, 17540), (1295, 14032), (1480, 12278), (1754, 10360), (2072, 8770), (2590, 7016), (2960, 6139), (3508, 5180), (4144, 4385)]