128351905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 171924480

約数和(自身を除く): 43572575

約数列:

[1, 5, 11, 55, 103, 139, 163, 515, 695, 815, 1133, 1529, 1793, 5665, 7645, 8965, 14317, 16789, 22657, 71585, 83945, 113285, 157487, 184679, 249227, 787435, 923395, 1246135, 2333671, 11668355, 25670381, 128351905]

約数ペア:

[(1, 128351905), (5, 25670381), (11, 11668355), (55, 2333671), (103, 1246135), (139, 923395), (163, 787435), (515, 249227), (695, 184679), (815, 157487), (1133, 113285), (1529, 83945), (1793, 71585), (5665, 22657), (7645, 16789), (8965, 14317)]