721012

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:255

約数の個数: 24

約数和(自身を含む): 1360800

約数和(自身を除く): 639788

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 179, 212, 358, 716, 1007, 2014, 3401, 4028, 6802, 9487, 13604, 18974, 37948, 180253, 360506, 721012]

約数ペア:

[(1, 721012), (2, 360506), (4, 180253), (19, 37948), (38, 18974), (53, 13604), (76, 9487), (106, 6802), (179, 4028), (212, 3401), (358, 2014), (716, 1007)]