28285627720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1000199}}^1$

素因数の和:1000318

約数の個数: 64

約数和(自身を含む): 73454688000

約数和(自身を除く): 45169060280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 808, 1010, 1414, 2020, 2828, 3535, 4040, 5656, 7070, 14140, 28280, 1000199, 2000398, 4000796, 5000995, 7001393, 8001592, 10001990, 14002786, 20003980, 28005572, 35006965, 40007960, 56011144, 70013930, 101020099, 140027860, 202040198, 280055720, 404080396, 505100495, 707140693, 808160792, 1010200990, 1414281386, 2020401980, 2828562772, 3535703465, 4040803960, 5657125544, 7071406930, 14142813860, 28285627720]

約数ペア:

[(1, 28285627720), (2, 14142813860), (4, 7071406930), (5, 5657125544), (7, 4040803960), (8, 3535703465), (10, 2828562772), (14, 2020401980), (20, 1414281386), (28, 1010200990), (35, 808160792), (40, 707140693), (56, 505100495), (70, 404080396), (101, 280055720), (140, 202040198), (202, 140027860), (280, 101020099), (404, 70013930), (505, 56011144), (707, 40007960), (808, 35006965), (1010, 28005572), (1414, 20003980), (2020, 14002786), (2828, 10001990), (3535, 8001592), (4040, 7001393), (5656, 5000995), (7070, 4000796), (14140, 2000398), (28280, 1000199)]