221309120

素因数分解:

$2^6\times 5^1\times {\mathrm{691591}}^1$

素因数の和:691608

約数の個数: 28

約数和(自身を含む): 526993104

約数和(自身を除く): 305683984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 691591, 1383182, 2766364, 3457955, 5532728, 6915910, 11065456, 13831820, 22130912, 27663640, 44261824, 55327280, 110654560, 221309120]

約数ペア:

[(1, 221309120), (2, 110654560), (4, 55327280), (5, 44261824), (8, 27663640), (10, 22130912), (16, 13831820), (20, 11065456), (32, 6915910), (40, 5532728), (64, 3457955), (80, 2766364), (160, 1383182), (320, 691591)]