7140980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4637}}^1$

素因数の和:4664

約数の個数: 48

約数和(自身を含む): 18700416

約数和(自身を除く): 11559436

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 4637, 9274, 18548, 23185, 32459, 46370, 51007, 64918, 92740, 102014, 129836, 162295, 204028, 255035, 324590, 357049, 510070, 649180, 714098, 1020140, 1428196, 1785245, 3570490, 7140980]

約数ペア:

[(1, 7140980), (2, 3570490), (4, 1785245), (5, 1428196), (7, 1020140), (10, 714098), (11, 649180), (14, 510070), (20, 357049), (22, 324590), (28, 255035), (35, 204028), (44, 162295), (55, 129836), (70, 102014), (77, 92740), (110, 64918), (140, 51007), (154, 46370), (220, 32459), (308, 23185), (385, 18548), (770, 9274), (1540, 4637)]