664411468

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{10781}}^1$

素因数の和:10894

約数の個数: 48

約数和(自身を含む): 1391136768

約数和(自身を除く): 726725300

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 71, 124, 142, 217, 284, 434, 497, 868, 994, 1988, 2201, 4402, 8804, 10781, 15407, 21562, 30814, 43124, 61628, 75467, 150934, 301868, 334211, 668422, 765451, 1336844, 1530902, 2339477, 3061804, 4678954, 5358157, 9357908, 10716314, 21432628, 23728981, 47457962, 94915924, 166102867, 332205734, 664411468]

約数ペア:

[(1, 664411468), (2, 332205734), (4, 166102867), (7, 94915924), (14, 47457962), (28, 23728981), (31, 21432628), (62, 10716314), (71, 9357908), (124, 5358157), (142, 4678954), (217, 3061804), (284, 2339477), (434, 1530902), (497, 1336844), (868, 765451), (994, 668422), (1988, 334211), (2201, 301868), (4402, 150934), (8804, 75467), (10781, 61628), (15407, 43124), (21562, 30814)]