197923640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{48991}}^1$

素因数の和:49103

約数の個数: 32

約数和(自身を含む): 449746560

約数和(自身を除く): 251822920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 48991, 97982, 195964, 244955, 391928, 489910, 979820, 1959640, 4948091, 9896182, 19792364, 24740455, 39584728, 49480910, 98961820, 197923640]

約数ペア:

[(1, 197923640), (2, 98961820), (4, 49480910), (5, 39584728), (8, 24740455), (10, 19792364), (20, 9896182), (40, 4948091), (101, 1959640), (202, 979820), (404, 489910), (505, 391928), (808, 244955), (1010, 195964), (2020, 97982), (4040, 48991)]