221551160

素因数分解:

$2^3\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{3931}}^1$

素因数の和:5351

約数の個数: 32

約数和(自身を含む): 498970800

約数和(自身を除く): 277419640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1409, 2818, 3931, 5636, 7045, 7862, 11272, 14090, 15724, 19655, 28180, 31448, 39310, 56360, 78620, 157240, 5538779, 11077558, 22155116, 27693895, 44310232, 55387790, 110775580, 221551160]

約数ペア:

[(1, 221551160), (2, 110775580), (4, 55387790), (5, 44310232), (8, 27693895), (10, 22155116), (20, 11077558), (40, 5538779), (1409, 157240), (2818, 78620), (3931, 56360), (5636, 39310), (7045, 31448), (7862, 28180), (11272, 19655), (14090, 15724)]