20127728

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73999}}^1$

素因数の和:74024

約数の個数: 20

約数和(自身を含む): 41292000

約数和(自身を除く): 21164272

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 73999, 147998, 295996, 591992, 1183984, 1257983, 2515966, 5031932, 10063864, 20127728]

約数ペア:

[(1, 20127728), (2, 10063864), (4, 5031932), (8, 2515966), (16, 1257983), (17, 1183984), (34, 591992), (68, 295996), (136, 147998), (272, 73999)]