205163900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{107981}}^1$

素因数の和:108014

約数の個数: 36

約数和(自身を含む): 468641880

約数和(自身を除く): 263477980

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 107981, 215962, 431924, 539905, 1079810, 2051639, 2159620, 2699525, 4103278, 5399050, 8206556, 10258195, 10798100, 20516390, 41032780, 51290975, 102581950, 205163900]

約数ペア:

[(1, 205163900), (2, 102581950), (4, 51290975), (5, 41032780), (10, 20516390), (19, 10798100), (20, 10258195), (25, 8206556), (38, 5399050), (50, 4103278), (76, 2699525), (95, 2159620), (100, 2051639), (190, 1079810), (380, 539905), (475, 431924), (950, 215962), (1900, 107981)]