990404272

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{432869}}^1$

素因数の和:432901

約数の個数: 40

約数和(自身を含む): 2254386960

約数和(自身を除く): 1263982688

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 432869, 865738, 1731476, 3462952, 4761559, 5627297, 6925904, 9523118, 11254594, 19046236, 22509188, 38092472, 45018376, 61900267, 76184944, 90036752, 123800534, 247601068, 495202136, 990404272]

約数ペア:

[(1, 990404272), (2, 495202136), (4, 247601068), (8, 123800534), (11, 90036752), (13, 76184944), (16, 61900267), (22, 45018376), (26, 38092472), (44, 22509188), (52, 19046236), (88, 11254594), (104, 9523118), (143, 6925904), (176, 5627297), (208, 4761559), (286, 3462952), (572, 1731476), (1144, 865738), (2288, 432869)]