81644360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2887}}^1$

素因数の和:3006

約数の個数: 64

約数和(自身を含む): 212094720

約数和(自身を除く): 130450360

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, 2887, 3535, 4040, 5656, 5774, 7070, 11548, 14140, 14435, 20209, 23096, 28280, 28870, 40418, 57740, 80836, 101045, 115480, 161672, 202090, 291587, 404180, 583174, 808360, 1166348, 1457935, 2041109, 2332696, 2915870, 4082218, 5831740, 8164436, 10205545, 11663480, 16328872, 20411090, 40822180, 81644360]

約数ペア:

[(1, 81644360), (2, 40822180), (4, 20411090), (5, 16328872), (7, 11663480), (8, 10205545), (10, 8164436), (14, 5831740), (20, 4082218), (28, 2915870), (35, 2332696), (40, 2041109), (56, 1457935), (70, 1166348), (101, 808360), (140, 583174), (202, 404180), (280, 291587), (404, 202090), (505, 161672), (707, 115480), (808, 101045), (1010, 80836), (1414, 57740), (2020, 40418), (2828, 28870), (2887, 28280), (3535, 23096), (4040, 20209), (5656, 14435), (5774, 14140), (7070, 11548)]