642864712

素因数分解:

$2^3\times 7^2\times {\mathrm{79}}^1\times {\mathrm{20759}}^1$

素因数の和:20858

約数の個数: 48

約数和(自身を含む): 1419984000

約数和(自身を除く): 777119288

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 79, 98, 158, 196, 316, 392, 553, 632, 1106, 2212, 3871, 4424, 7742, 15484, 20759, 30968, 41518, 83036, 145313, 166072, 290626, 581252, 1017191, 1162504, 1639961, 2034382, 3279922, 4068764, 6559844, 8137528, 11479727, 13119688, 22959454, 45918908, 80358089, 91837816, 160716178, 321432356, 642864712]

約数ペア:

[(1, 642864712), (2, 321432356), (4, 160716178), (7, 91837816), (8, 80358089), (14, 45918908), (28, 22959454), (49, 13119688), (56, 11479727), (79, 8137528), (98, 6559844), (158, 4068764), (196, 3279922), (316, 2034382), (392, 1639961), (553, 1162504), (632, 1017191), (1106, 581252), (2212, 290626), (3871, 166072), (4424, 145313), (7742, 83036), (15484, 41518), (20759, 30968)]