20290928

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10657}}^1$

素因数の和:10689

約数の個数: 40

約数和(自身を含む): 47577312

約数和(自身を除く): 27286384

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 10657, 21314, 42628, 74599, 85256, 149198, 170512, 181169, 298396, 362338, 596792, 724676, 1193584, 1268183, 1449352, 2536366, 2898704, 5072732, 10145464, 20290928]

約数ペア:

[(1, 20290928), (2, 10145464), (4, 5072732), (7, 2898704), (8, 2536366), (14, 1449352), (16, 1268183), (17, 1193584), (28, 724676), (34, 596792), (56, 362338), (68, 298396), (112, 181169), (119, 170512), (136, 149198), (238, 85256), (272, 74599), (476, 42628), (952, 21314), (1904, 10657)]