211039240

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{30497}}^1$

素因数の和:30681

約数の個数: 32

約数和(自身を含む): 477598680

約数和(自身を除く): 266559440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 30497, 60994, 121988, 152485, 243976, 304970, 609940, 1219880, 5275981, 10551962, 21103924, 26379905, 42207848, 52759810, 105519620, 211039240]

約数ペア:

[(1, 211039240), (2, 105519620), (4, 52759810), (5, 42207848), (8, 26379905), (10, 21103924), (20, 10551962), (40, 5275981), (173, 1219880), (346, 609940), (692, 304970), (865, 243976), (1384, 152485), (1730, 121988), (3460, 60994), (6920, 30497)]