28651792

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{991}}^1$

素因数の和:1151

約数の個数: 40

約数和(自身を含む): 60273920

約数和(自身を除く): 31622128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 139, 208, 278, 556, 991, 1112, 1807, 1982, 2224, 3614, 3964, 7228, 7928, 12883, 14456, 15856, 25766, 28912, 51532, 103064, 137749, 206128, 275498, 550996, 1101992, 1790737, 2203984, 3581474, 7162948, 14325896, 28651792]

約数ペア:

[(1, 28651792), (2, 14325896), (4, 7162948), (8, 3581474), (13, 2203984), (16, 1790737), (26, 1101992), (52, 550996), (104, 275498), (139, 206128), (208, 137749), (278, 103064), (556, 51532), (991, 28912), (1112, 25766), (1807, 15856), (1982, 14456), (2224, 12883), (3614, 7928), (3964, 7228)]