131300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:128

約数の個数: 36

約数和(自身を含む): 309876

約数和(自身を除く): 178576

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 101, 130, 202, 260, 325, 404, 505, 650, 1010, 1300, 1313, 2020, 2525, 2626, 5050, 5252, 6565, 10100, 13130, 26260, 32825, 65650, 131300]

約数ペア:

[(1, 131300), (2, 65650), (4, 32825), (5, 26260), (10, 13130), (13, 10100), (20, 6565), (25, 5252), (26, 5050), (50, 2626), (52, 2525), (65, 2020), (100, 1313), (101, 1300), (130, 1010), (202, 650), (260, 505), (325, 404)]