19109740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1097}}^1$

素因数の和:1186

約数の個数: 48

約数和(自身を含む): 43902432

約数和(自身を除く): 24792692

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1097, 1340, 1742, 2194, 3484, 4355, 4388, 5485, 8710, 10970, 14261, 17420, 21940, 28522, 57044, 71305, 73499, 142610, 146998, 285220, 293996, 367495, 734990, 955487, 1469980, 1910974, 3821948, 4777435, 9554870, 19109740]

約数ペア:

[(1, 19109740), (2, 9554870), (4, 4777435), (5, 3821948), (10, 1910974), (13, 1469980), (20, 955487), (26, 734990), (52, 367495), (65, 293996), (67, 285220), (130, 146998), (134, 142610), (260, 73499), (268, 71305), (335, 57044), (670, 28522), (871, 21940), (1097, 17420), (1340, 14261), (1742, 10970), (2194, 8710), (3484, 5485), (4355, 4388)]