158203420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{192931}}^1$

素因数の和:192981

約数の個数: 24

約数和(自身を含む): 340332048

約数和(自身を除く): 182128628

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 192931, 385862, 771724, 964655, 1929310, 3858620, 7910171, 15820342, 31640684, 39550855, 79101710, 158203420]

約数ペア:

[(1, 158203420), (2, 79101710), (4, 39550855), (5, 31640684), (10, 15820342), (20, 7910171), (41, 3858620), (82, 1929310), (164, 964655), (205, 771724), (410, 385862), (820, 192931)]