681411280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{1931}}^1$

素因数の和:2356

約数の個数: 80

約数和(自身を含む): 1733514048

約数和(自身を除く): 1052102768

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 401, 440, 802, 880, 1604, 1931, 2005, 3208, 3862, 4010, 4411, 6416, 7724, 8020, 8822, 9655, 15448, 16040, 17644, 19310, 21241, 22055, 30896, 32080, 35288, 38620, 42482, 44110, 70576, 77240, 84964, 88220, 106205, 154480, 169928, 176440, 212410, 339856, 352880, 424820, 774331, 849640, 1548662, 1699280, 3097324, 3871655, 6194648, 7743310, 8517641, 12389296, 15486620, 17035282, 30973240, 34070564, 42588205, 61946480, 68141128, 85176410, 136282256, 170352820, 340705640, 681411280]

約数ペア:

[(1, 681411280), (2, 340705640), (4, 170352820), (5, 136282256), (8, 85176410), (10, 68141128), (11, 61946480), (16, 42588205), (20, 34070564), (22, 30973240), (40, 17035282), (44, 15486620), (55, 12389296), (80, 8517641), (88, 7743310), (110, 6194648), (176, 3871655), (220, 3097324), (401, 1699280), (440, 1548662), (802, 849640), (880, 774331), (1604, 424820), (1931, 352880), (2005, 339856), (3208, 212410), (3862, 176440), (4010, 169928), (4411, 154480), (6416, 106205), (7724, 88220), (8020, 84964), (8822, 77240), (9655, 70576), (15448, 44110), (16040, 42482), (17644, 38620), (19310, 35288), (21241, 32080), (22055, 30896)]