686204636

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^2\times {\mathrm{683}}^1$

素因数の和:978

約数の個数: 36

約数和(自身を含む): 1304509752

約数和(自身を除く): 618305116

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 683, 1366, 1807, 2732, 3614, 7228, 8879, 17758, 19321, 35516, 38642, 77284, 94937, 189874, 251173, 379748, 502346, 1004692, 1234181, 2468362, 4936724, 13196243, 26392486, 52784972, 171551159, 343102318, 686204636]

約数ペア:

[(1, 686204636), (2, 343102318), (4, 171551159), (13, 52784972), (26, 26392486), (52, 13196243), (139, 4936724), (278, 2468362), (556, 1234181), (683, 1004692), (1366, 502346), (1807, 379748), (2732, 251173), (3614, 189874), (7228, 94937), (8879, 77284), (17758, 38642), (19321, 35516)]