16820570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 33796440

約数和(自身を除く): 16975870

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 169, 185, 269, 338, 370, 481, 538, 845, 962, 1345, 1690, 2405, 2690, 3497, 4810, 6253, 6994, 9953, 12506, 17485, 19906, 31265, 34970, 45461, 49765, 62530, 90922, 99530, 129389, 227305, 258778, 454610, 646945, 1293890, 1682057, 3364114, 8410285, 16820570]

約数ペア:

[(1, 16820570), (2, 8410285), (5, 3364114), (10, 1682057), (13, 1293890), (26, 646945), (37, 454610), (65, 258778), (74, 227305), (130, 129389), (169, 99530), (185, 90922), (269, 62530), (338, 49765), (370, 45461), (481, 34970), (538, 31265), (845, 19906), (962, 17485), (1345, 12506), (1690, 9953), (2405, 6994), (2690, 6253), (3497, 4810)]