1999004812

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{12119}}^1$

素因数の和:12310

約数の個数: 48

約数和(自身を含む): 4121187840

約数和(自身を除く): 2122183028

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 137, 172, 274, 301, 548, 602, 959, 1204, 1918, 3836, 5891, 11782, 12119, 23564, 24238, 41237, 48476, 82474, 84833, 164948, 169666, 339332, 521117, 1042234, 1660303, 2084468, 3320606, 3647819, 6641212, 7295638, 11622121, 14591276, 23244242, 46488484, 71393029, 142786058, 285572116, 499751203, 999502406, 1999004812]

約数ペア:

[(1, 1999004812), (2, 999502406), (4, 499751203), (7, 285572116), (14, 142786058), (28, 71393029), (43, 46488484), (86, 23244242), (137, 14591276), (172, 11622121), (274, 7295638), (301, 6641212), (548, 3647819), (602, 3320606), (959, 2084468), (1204, 1660303), (1918, 1042234), (3836, 521117), (5891, 339332), (11782, 169666), (12119, 164948), (23564, 84833), (24238, 82474), (41237, 48476)]