261639784

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{59141}}^1$

素因数の和:59233

約数の個数: 32

約数和(自身を含む): 567763200

約数和(自身を除く): 306123416

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 158, 316, 553, 632, 1106, 2212, 4424, 59141, 118282, 236564, 413987, 473128, 827974, 1655948, 3311896, 4672139, 9344278, 18688556, 32704973, 37377112, 65409946, 130819892, 261639784]

約数ペア:

[(1, 261639784), (2, 130819892), (4, 65409946), (7, 37377112), (8, 32704973), (14, 18688556), (28, 9344278), (56, 4672139), (79, 3311896), (158, 1655948), (316, 827974), (553, 473128), (632, 413987), (1106, 236564), (2212, 118282), (4424, 59141)]