20550688

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1021}}^1$

素因数の和:1085

約数の個数: 48

約数和(自身を含む): 44040024

約数和(自身を除く): 23489336

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 68, 74, 136, 148, 272, 296, 544, 592, 629, 1021, 1184, 1258, 2042, 2516, 4084, 5032, 8168, 10064, 16336, 17357, 20128, 32672, 34714, 37777, 69428, 75554, 138856, 151108, 277712, 302216, 555424, 604432, 642209, 1208864, 1284418, 2568836, 5137672, 10275344, 20550688]

約数ペア:

[(1, 20550688), (2, 10275344), (4, 5137672), (8, 2568836), (16, 1284418), (17, 1208864), (32, 642209), (34, 604432), (37, 555424), (68, 302216), (74, 277712), (136, 151108), (148, 138856), (272, 75554), (296, 69428), (544, 37777), (592, 34714), (629, 32672), (1021, 20128), (1184, 17357), (1258, 16336), (2042, 10064), (2516, 8168), (4084, 5032)]