78802724

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19681}}^1$

素因数の和:19716

約数の個数: 48

約数和(自身を含む): 185168256

約数和(自身を除く): 106365532

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 19681, 39362, 78724, 137767, 216491, 255853, 275534, 432982, 511706, 551068, 865964, 1023412, 1515437, 1790971, 2814383, 3030874, 3581942, 5628766, 6061748, 7163884, 11257532, 19700681, 39401362, 78802724]

約数ペア:

[(1, 78802724), (2, 39401362), (4, 19700681), (7, 11257532), (11, 7163884), (13, 6061748), (14, 5628766), (22, 3581942), (26, 3030874), (28, 2814383), (44, 1790971), (52, 1515437), (77, 1023412), (91, 865964), (143, 551068), (154, 511706), (182, 432982), (286, 275534), (308, 255853), (364, 216491), (572, 137767), (1001, 78724), (2002, 39362), (4004, 19681)]