20199541700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15538109}}^1$

素因数の和:15538136

約数の個数: 36

約数和(自身を含む): 47204778180

約数和(自身を除く): 27005236480

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15538109, 31076218, 62152436, 77690545, 155381090, 201995417, 310762180, 388452725, 403990834, 776905450, 807981668, 1009977085, 1553810900, 2019954170, 4039908340, 5049885425, 10099770850, 20199541700]

約数ペア:

[(1, 20199541700), (2, 10099770850), (4, 5049885425), (5, 4039908340), (10, 2019954170), (13, 1553810900), (20, 1009977085), (25, 807981668), (26, 776905450), (50, 403990834), (52, 388452725), (65, 310762180), (100, 201995417), (130, 155381090), (260, 77690545), (325, 62152436), (650, 31076218), (1300, 15538109)]