19802900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15233}}^1$

素因数の和:15260

約数の個数: 36

約数和(自身を含む): 46280892

約数和(自身を除く): 26477992

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15233, 30466, 60932, 76165, 152330, 198029, 304660, 380825, 396058, 761650, 792116, 990145, 1523300, 1980290, 3960580, 4950725, 9901450, 19802900]

約数ペア:

[(1, 19802900), (2, 9901450), (4, 4950725), (5, 3960580), (10, 1980290), (13, 1523300), (20, 990145), (25, 792116), (26, 761650), (50, 396058), (52, 380825), (65, 304660), (100, 198029), (130, 152330), (260, 76165), (325, 60932), (650, 30466), (1300, 15233)]