20265904

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{74507}}^1$

素因数の和:74532

約数の個数: 20

約数和(自身を含む): 41575464

約数和(自身を除く): 21309560

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 74507, 149014, 298028, 596056, 1192112, 1266619, 2533238, 5066476, 10132952, 20265904]

約数ペア:

[(1, 20265904), (2, 10132952), (4, 5066476), (8, 2533238), (16, 1266619), (17, 1192112), (34, 596056), (68, 298028), (136, 149014), (272, 74507)]