18380824

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 43856640

約数和(自身を除く): 25475816

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 53, 56, 77, 88, 106, 154, 212, 308, 371, 424, 563, 583, 616, 742, 1126, 1166, 1484, 2252, 2332, 2968, 3941, 4081, 4504, 4664, 6193, 7882, 8162, 12386, 15764, 16324, 24772, 29839, 31528, 32648, 43351, 49544, 59678, 86702, 119356, 173404, 208873, 238712, 328229, 346808, 417746, 656458, 835492, 1312916, 1670984, 2297603, 2625832, 4595206, 9190412, 18380824]

約数ペア:

[(1, 18380824), (2, 9190412), (4, 4595206), (7, 2625832), (8, 2297603), (11, 1670984), (14, 1312916), (22, 835492), (28, 656458), (44, 417746), (53, 346808), (56, 328229), (77, 238712), (88, 208873), (106, 173404), (154, 119356), (212, 86702), (308, 59678), (371, 49544), (424, 43351), (563, 32648), (583, 31528), (616, 29839), (742, 24772), (1126, 16324), (1166, 15764), (1484, 12386), (2252, 8162), (2332, 7882), (2968, 6193), (3941, 4664), (4081, 4504)]