20678944

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4519}}^1$

素因数の和:4553

約数の個数: 48

約数和(自身を含む): 47839680

約数和(自身を除く): 27160736

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 88, 104, 143, 176, 208, 286, 352, 416, 572, 1144, 2288, 4519, 4576, 9038, 18076, 36152, 49709, 58747, 72304, 99418, 117494, 144608, 198836, 234988, 397672, 469976, 646217, 795344, 939952, 1292434, 1590688, 1879904, 2584868, 5169736, 10339472, 20678944]

約数ペア:

[(1, 20678944), (2, 10339472), (4, 5169736), (8, 2584868), (11, 1879904), (13, 1590688), (16, 1292434), (22, 939952), (26, 795344), (32, 646217), (44, 469976), (52, 397672), (88, 234988), (104, 198836), (143, 144608), (176, 117494), (208, 99418), (286, 72304), (352, 58747), (416, 49709), (572, 36152), (1144, 18076), (2288, 9038), (4519, 4576)]