1531780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 3528000

約数和(自身を除く): 1996220

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 139, 145, 190, 278, 290, 380, 551, 556, 580, 695, 1102, 1390, 2204, 2641, 2755, 2780, 4031, 5282, 5510, 8062, 10564, 11020, 13205, 16124, 20155, 26410, 40310, 52820, 76589, 80620, 153178, 306356, 382945, 765890, 1531780]

約数ペア:

[(1, 1531780), (2, 765890), (4, 382945), (5, 306356), (10, 153178), (19, 80620), (20, 76589), (29, 52820), (38, 40310), (58, 26410), (76, 20155), (95, 16124), (116, 13205), (139, 11020), (145, 10564), (190, 8062), (278, 5510), (290, 5282), (380, 4031), (551, 2780), (556, 2755), (580, 2641), (695, 2204), (1102, 1390)]