128215178

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{1811}}^1$

素因数の和:2222

約数の個数: 32

約数和(自身を含む): 237444480

約数和(自身を除く): 109229302

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 389, 778, 1811, 2723, 3622, 5057, 5446, 10114, 12677, 23543, 25354, 35399, 47086, 70798, 164801, 329602, 704479, 1408958, 4931353, 9158227, 9862706, 18316454, 64107589, 128215178]

約数ペア:

[(1, 128215178), (2, 64107589), (7, 18316454), (13, 9862706), (14, 9158227), (26, 4931353), (91, 1408958), (182, 704479), (389, 329602), (778, 164801), (1811, 70798), (2723, 47086), (3622, 35399), (5057, 25354), (5446, 23543), (10114, 12677)]