654326864

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{20897}}^1$

素因数の和:21027

約数の個数: 40

約数和(自身を含む): 1347503040

約数和(自身を除く): 693176176

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 103, 152, 206, 304, 412, 824, 1648, 1957, 3914, 7828, 15656, 20897, 31312, 41794, 83588, 167176, 334352, 397043, 794086, 1588172, 2152391, 3176344, 4304782, 6352688, 8609564, 17219128, 34438256, 40895429, 81790858, 163581716, 327163432, 654326864]

約数ペア:

[(1, 654326864), (2, 327163432), (4, 163581716), (8, 81790858), (16, 40895429), (19, 34438256), (38, 17219128), (76, 8609564), (103, 6352688), (152, 4304782), (206, 3176344), (304, 2152391), (412, 1588172), (824, 794086), (1648, 397043), (1957, 334352), (3914, 167176), (7828, 83588), (15656, 41794), (20897, 31312)]