28370020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{28949}}^1$

素因数の和:28972

約数の個数: 36

約数和(自身を含む): 69306300

約数和(自身を除く): 40936280

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 28949, 57898, 115796, 144745, 202643, 289490, 405286, 578980, 810572, 1013215, 1418501, 2026430, 2837002, 4052860, 5674004, 7092505, 14185010, 28370020]

約数ペア:

[(1, 28370020), (2, 14185010), (4, 7092505), (5, 5674004), (7, 4052860), (10, 2837002), (14, 2026430), (20, 1418501), (28, 1013215), (35, 810572), (49, 578980), (70, 405286), (98, 289490), (140, 202643), (196, 144745), (245, 115796), (490, 57898), (980, 28949)]