212822840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{67349}}^1$

素因数の和:67439

約数の個数: 32

約数和(自身を含む): 484920000

約数和(自身を除く): 272097160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 67349, 134698, 269396, 336745, 538792, 673490, 1346980, 2693960, 5320571, 10641142, 21282284, 26602855, 42564568, 53205710, 106411420, 212822840]

約数ペア:

[(1, 212822840), (2, 106411420), (4, 53205710), (5, 42564568), (8, 26602855), (10, 21282284), (20, 10641142), (40, 5320571), (79, 2693960), (158, 1346980), (316, 673490), (395, 538792), (632, 336745), (790, 269396), (1580, 134698), (3160, 67349)]