258937980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{616519}}^1$

素因数の和:616538

約数の個数: 48

約数和(自身を含む): 828602880

約数和(自身を除く): 569664900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 616519, 1233038, 1849557, 2466076, 3082595, 3699114, 4315633, 6165190, 7398228, 8631266, 9247785, 12330380, 12946899, 17262532, 18495570, 21578165, 25893798, 36991140, 43156330, 51787596, 64734495, 86312660, 129468990, 258937980]

約数ペア:

[(1, 258937980), (2, 129468990), (3, 86312660), (4, 64734495), (5, 51787596), (6, 43156330), (7, 36991140), (10, 25893798), (12, 21578165), (14, 18495570), (15, 17262532), (20, 12946899), (21, 12330380), (28, 9247785), (30, 8631266), (35, 7398228), (42, 6165190), (60, 4315633), (70, 3699114), (84, 3082595), (105, 2466076), (140, 1849557), (210, 1233038), (420, 616519)]