207438280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20023}}^1$

素因数の和:20078

約数の個数: 64

約数和(自身を含む): 547856640

約数和(自身を除く): 340418360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2590, 5180, 10360, 20023, 40046, 80092, 100115, 140161, 160184, 200230, 280322, 400460, 560644, 700805, 740851, 800920, 1121288, 1401610, 1481702, 2803220, 2963404, 3704255, 5185957, 5606440, 5926808, 7408510, 10371914, 14817020, 20743828, 25929785, 29634040, 41487656, 51859570, 103719140, 207438280]

約数ペア:

[(1, 207438280), (2, 103719140), (4, 51859570), (5, 41487656), (7, 29634040), (8, 25929785), (10, 20743828), (14, 14817020), (20, 10371914), (28, 7408510), (35, 5926808), (37, 5606440), (40, 5185957), (56, 3704255), (70, 2963404), (74, 2803220), (140, 1481702), (148, 1401610), (185, 1121288), (259, 800920), (280, 740851), (296, 700805), (370, 560644), (518, 400460), (740, 280322), (1036, 200230), (1295, 160184), (1480, 140161), (2072, 100115), (2590, 80092), (5180, 40046), (10360, 20023)]