28270138

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 48686400

約数和(自身を除く): 20416262

約数列:

[1, 2, 13, 19, 26, 38, 89, 178, 247, 494, 643, 1157, 1286, 1691, 2314, 3382, 8359, 12217, 16718, 21983, 24434, 43966, 57227, 114454, 158821, 317642, 743951, 1087313, 1487902, 2174626, 14135069, 28270138]

約数ペア:

[(1, 28270138), (2, 14135069), (13, 2174626), (19, 1487902), (26, 1087313), (38, 743951), (89, 317642), (178, 158821), (247, 114454), (494, 57227), (643, 43966), (1157, 24434), (1286, 21983), (1691, 16718), (2314, 12217), (3382, 8359)]