395920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{101}}^1$

素因数の和:128

約数の個数: 60

約数和(自身を含む): 1081404

約数和(自身を除く): 685484

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 101, 112, 140, 196, 202, 245, 280, 392, 404, 490, 505, 560, 707, 784, 808, 980, 1010, 1414, 1616, 1960, 2020, 2828, 3535, 3920, 4040, 4949, 5656, 7070, 8080, 9898, 11312, 14140, 19796, 24745, 28280, 39592, 49490, 56560, 79184, 98980, 197960, 395920]

約数ペア:

[(1, 395920), (2, 197960), (4, 98980), (5, 79184), (7, 56560), (8, 49490), (10, 39592), (14, 28280), (16, 24745), (20, 19796), (28, 14140), (35, 11312), (40, 9898), (49, 8080), (56, 7070), (70, 5656), (80, 4949), (98, 4040), (101, 3920), (112, 3535), (140, 2828), (196, 2020), (202, 1960), (245, 1616), (280, 1414), (392, 1010), (404, 980), (490, 808), (505, 784), (560, 707)]