138656840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{4903}}^1$

素因数の和:5022

約数の個数: 64

約数和(自身を含む): 360149760

約数和(自身を除く): 221492920

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, 4903, 5656, 7070, 9806, 14140, 19612, 24515, 28280, 34321, 39224, 49030, 68642, 98060, 137284, 171605, 196120, 274568, 343210, 495203, 686420, 990406, 1372840, 1980812, 2476015, 3466421, 3961624, 4952030, 6932842, 9904060, 13865684, 17332105, 19808120, 27731368, 34664210, 69328420, 138656840]

約数ペア:

[(1, 138656840), (2, 69328420), (4, 34664210), (5, 27731368), (7, 19808120), (8, 17332105), (10, 13865684), (14, 9904060), (20, 6932842), (28, 4952030), (35, 3961624), (40, 3466421), (56, 2476015), (70, 1980812), (101, 1372840), (140, 990406), (202, 686420), (280, 495203), (404, 343210), (505, 274568), (707, 196120), (808, 171605), (1010, 137284), (1414, 98060), (2020, 68642), (2828, 49030), (3535, 39224), (4040, 34321), (4903, 28280), (5656, 24515), (7070, 19612), (9806, 14140)]