392980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{401}}^1$

素因数の和:424

約数の個数: 36

約数和(自身を含む): 962388

約数和(自身を除く): 569408

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 401, 490, 802, 980, 1604, 2005, 2807, 4010, 5614, 8020, 11228, 14035, 19649, 28070, 39298, 56140, 78596, 98245, 196490, 392980]

約数ペア:

[(1, 392980), (2, 196490), (4, 98245), (5, 78596), (7, 56140), (10, 39298), (14, 28070), (20, 19649), (28, 14035), (35, 11228), (49, 8020), (70, 5614), (98, 4010), (140, 2807), (196, 2005), (245, 1604), (401, 980), (490, 802)]