1259739728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{33461}}^1$

素因数の和:33663

約数の個数: 40

約数和(自身を含む): 2643096456

約数和(自身を除く): 1383356728

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 181, 208, 362, 724, 1448, 2353, 2896, 4706, 9412, 18824, 33461, 37648, 66922, 133844, 267688, 434993, 535376, 869986, 1739972, 3479944, 6056441, 6959888, 12112882, 24225764, 48451528, 78733733, 96903056, 157467466, 314934932, 629869864, 1259739728]

約数ペア:

[(1, 1259739728), (2, 629869864), (4, 314934932), (8, 157467466), (13, 96903056), (16, 78733733), (26, 48451528), (52, 24225764), (104, 12112882), (181, 6959888), (208, 6056441), (362, 3479944), (724, 1739972), (1448, 869986), (2353, 535376), (2896, 434993), (4706, 267688), (9412, 133844), (18824, 66922), (33461, 37648)]