65982020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{253777}}^1$

素因数の和:253799

約数の個数: 24

約数和(自身を含む): 149221464

約数和(自身を除く): 83239444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 253777, 507554, 1015108, 1268885, 2537770, 3299101, 5075540, 6598202, 13196404, 16495505, 32991010, 65982020]

約数ペア:

[(1, 65982020), (2, 32991010), (4, 16495505), (5, 13196404), (10, 6598202), (13, 5075540), (20, 3299101), (26, 2537770), (52, 1268885), (65, 1015108), (130, 507554), (260, 253777)]