20502872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1439}}^1$

素因数の和:1595

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 21228328

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 137, 274, 548, 1096, 1439, 1781, 2878, 3562, 5756, 7124, 11512, 14248, 18707, 37414, 74828, 149656, 197143, 394286, 788572, 1577144, 2562859, 5125718, 10251436, 20502872]

約数ペア:

[(1, 20502872), (2, 10251436), (4, 5125718), (8, 2562859), (13, 1577144), (26, 788572), (52, 394286), (104, 197143), (137, 149656), (274, 74828), (548, 37414), (1096, 18707), (1439, 14248), (1781, 11512), (2878, 7124), (3562, 5756)]