638534974

素因数分解:

$2^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2287}}^1$

素因数の和:2358

約数の個数: 64

約数和(自身を含む): 1251993600

約数和(自身を除く): 613458626

約数列:

[1, 2, 7, 11, 14, 22, 37, 49, 74, 77, 98, 154, 259, 343, 407, 518, 539, 686, 814, 1078, 1813, 2287, 2849, 3626, 3773, 4574, 5698, 7546, 12691, 16009, 19943, 25157, 25382, 32018, 39886, 50314, 84619, 112063, 139601, 169238, 176099, 224126, 279202, 352198, 592333, 784441, 930809, 1184666, 1232693, 1568882, 1861618, 2465386, 4146331, 6515663, 8292662, 8628851, 13031326, 17257702, 29024317, 45609641, 58048634, 91219282, 319267487, 638534974]

約数ペア:

[(1, 638534974), (2, 319267487), (7, 91219282), (11, 58048634), (14, 45609641), (22, 29024317), (37, 17257702), (49, 13031326), (74, 8628851), (77, 8292662), (98, 6515663), (154, 4146331), (259, 2465386), (343, 1861618), (407, 1568882), (518, 1232693), (539, 1184666), (686, 930809), (814, 784441), (1078, 592333), (1813, 352198), (2287, 279202), (2849, 224126), (3626, 176099), (3773, 169238), (4574, 139601), (5698, 112063), (7546, 84619), (12691, 50314), (16009, 39886), (19943, 32018), (25157, 25382)]