20441888

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{709}}^1$

素因数の和:789

約数の個数: 48

約数和(自身を含む): 43477560

約数和(自身を除く): 23035672

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 53, 68, 106, 136, 212, 272, 424, 544, 709, 848, 901, 1418, 1696, 1802, 2836, 3604, 5672, 7208, 11344, 12053, 14416, 22688, 24106, 28832, 37577, 48212, 75154, 96424, 150308, 192848, 300616, 385696, 601232, 638809, 1202464, 1277618, 2555236, 5110472, 10220944, 20441888]

約数ペア:

[(1, 20441888), (2, 10220944), (4, 5110472), (8, 2555236), (16, 1277618), (17, 1202464), (32, 638809), (34, 601232), (53, 385696), (68, 300616), (106, 192848), (136, 150308), (212, 96424), (272, 75154), (424, 48212), (544, 37577), (709, 28832), (848, 24106), (901, 22688), (1418, 14416), (1696, 12053), (1802, 11344), (2836, 7208), (3604, 5672)]