66975440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{601}}^1$

素因数の和:820

約数の個数: 80

約数和(自身を含む): 179155200

約数和(自身を除く): 112179760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 199, 280, 398, 560, 601, 796, 995, 1202, 1393, 1592, 1990, 2404, 2786, 3005, 3184, 3980, 4207, 4808, 5572, 6010, 6965, 7960, 8414, 9616, 11144, 12020, 13930, 15920, 16828, 21035, 22288, 24040, 27860, 33656, 42070, 48080, 55720, 67312, 84140, 111440, 119599, 168280, 239198, 336560, 478396, 597995, 837193, 956792, 1195990, 1674386, 1913584, 2391980, 3348772, 4185965, 4783960, 6697544, 8371930, 9567920, 13395088, 16743860, 33487720, 66975440]

約数ペア:

[(1, 66975440), (2, 33487720), (4, 16743860), (5, 13395088), (7, 9567920), (8, 8371930), (10, 6697544), (14, 4783960), (16, 4185965), (20, 3348772), (28, 2391980), (35, 1913584), (40, 1674386), (56, 1195990), (70, 956792), (80, 837193), (112, 597995), (140, 478396), (199, 336560), (280, 239198), (398, 168280), (560, 119599), (601, 111440), (796, 84140), (995, 67312), (1202, 55720), (1393, 48080), (1592, 42070), (1990, 33656), (2404, 27860), (2786, 24040), (3005, 22288), (3184, 21035), (3980, 16828), (4207, 15920), (4808, 13930), (5572, 12020), (6010, 11144), (6965, 9616), (7960, 8414)]