90888590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1187}}^1$

素因数の和:1257

約数の個数: 64

約数和(自身を含む): 191600640

約数和(自身を除く): 100712050

約数列:

[1, 2, 5, 10, 13, 19, 26, 31, 38, 62, 65, 95, 130, 155, 190, 247, 310, 403, 494, 589, 806, 1178, 1187, 1235, 2015, 2374, 2470, 2945, 4030, 5890, 5935, 7657, 11870, 15314, 15431, 22553, 30862, 36797, 38285, 45106, 73594, 76570, 77155, 112765, 154310, 183985, 225530, 293189, 367970, 478361, 586378, 699143, 956722, 1398286, 1465945, 2391805, 2931890, 3495715, 4783610, 6991430, 9088859, 18177718, 45444295, 90888590]

約数ペア:

[(1, 90888590), (2, 45444295), (5, 18177718), (10, 9088859), (13, 6991430), (19, 4783610), (26, 3495715), (31, 2931890), (38, 2391805), (62, 1465945), (65, 1398286), (95, 956722), (130, 699143), (155, 586378), (190, 478361), (247, 367970), (310, 293189), (403, 225530), (494, 183985), (589, 154310), (806, 112765), (1178, 77155), (1187, 76570), (1235, 73594), (2015, 45106), (2374, 38285), (2470, 36797), (2945, 30862), (4030, 22553), (5890, 15431), (5935, 15314), (7657, 11870)]