728021294

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{21391}}^1$

素因数の和:21441

約数の個数: 64

約数和(自身を含む): 1552545792

約数和(自身を除く): 824524498

約数列:

[1, 2, 7, 11, 13, 14, 17, 22, 26, 34, 77, 91, 119, 143, 154, 182, 187, 221, 238, 286, 374, 442, 1001, 1309, 1547, 2002, 2431, 2618, 3094, 4862, 17017, 21391, 34034, 42782, 149737, 235301, 278083, 299474, 363647, 470602, 556166, 727294, 1647107, 1946581, 2545529, 3058913, 3294214, 3893162, 4000117, 4727411, 5091058, 6117826, 8000234, 9454822, 21412391, 28000819, 33091877, 42824782, 52001521, 56001638, 66183754, 104003042, 364010647, 728021294]

約数ペア:

[(1, 728021294), (2, 364010647), (7, 104003042), (11, 66183754), (13, 56001638), (14, 52001521), (17, 42824782), (22, 33091877), (26, 28000819), (34, 21412391), (77, 9454822), (91, 8000234), (119, 6117826), (143, 5091058), (154, 4727411), (182, 4000117), (187, 3893162), (221, 3294214), (238, 3058913), (286, 2545529), (374, 1946581), (442, 1647107), (1001, 727294), (1309, 556166), (1547, 470602), (2002, 363647), (2431, 299474), (2618, 278083), (3094, 235301), (4862, 149737), (17017, 42782), (21391, 34034)]