268997540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61981}}^1$

素因数の和:62028

約数の個数: 48

約数和(自身を含む): 666430464

約数和(自身を除く): 397432924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 61981, 123962, 247924, 309905, 433867, 619810, 867734, 1239620, 1735468, 1921411, 2169335, 3842822, 4338670, 7685644, 8677340, 9607055, 13449877, 19214110, 26899754, 38428220, 53799508, 67249385, 134498770, 268997540]

約数ペア:

[(1, 268997540), (2, 134498770), (4, 67249385), (5, 53799508), (7, 38428220), (10, 26899754), (14, 19214110), (20, 13449877), (28, 9607055), (31, 8677340), (35, 7685644), (62, 4338670), (70, 3842822), (124, 2169335), (140, 1921411), (155, 1735468), (217, 1239620), (310, 867734), (434, 619810), (620, 433867), (868, 309905), (1085, 247924), (2170, 123962), (4340, 61981)]