280705236

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{2441}}^1$

素因数の和:2529

約数の個数: 72

約数和(自身を含む): 769640256

約数和(自身を除く): 488935020

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 74, 84, 111, 148, 222, 259, 444, 518, 777, 1036, 1369, 1554, 2441, 2738, 3108, 4107, 4882, 5476, 7323, 8214, 9583, 9764, 14646, 16428, 17087, 19166, 28749, 29292, 34174, 38332, 51261, 57498, 68348, 90317, 102522, 114996, 180634, 205044, 270951, 361268, 541902, 632219, 1083804, 1264438, 1896657, 2528876, 3341729, 3793314, 6683458, 7586628, 10025187, 13366916, 20050374, 23392103, 40100748, 46784206, 70176309, 93568412, 140352618, 280705236]

約数ペア:

[(1, 280705236), (2, 140352618), (3, 93568412), (4, 70176309), (6, 46784206), (7, 40100748), (12, 23392103), (14, 20050374), (21, 13366916), (28, 10025187), (37, 7586628), (42, 6683458), (74, 3793314), (84, 3341729), (111, 2528876), (148, 1896657), (222, 1264438), (259, 1083804), (444, 632219), (518, 541902), (777, 361268), (1036, 270951), (1369, 205044), (1554, 180634), (2441, 114996), (2738, 102522), (3108, 90317), (4107, 68348), (4882, 57498), (5476, 51261), (7323, 38332), (8214, 34174), (9583, 29292), (9764, 28749), (14646, 19166), (16428, 17087)]