251704180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{859}}^1$

素因数の和:918

約数の個数: 144

約数和(自身を含む): 691770240

約数和(自身を除く): 440066060

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 49, 52, 65, 70, 91, 92, 98, 115, 130, 140, 161, 182, 196, 230, 245, 260, 299, 322, 364, 455, 460, 490, 598, 637, 644, 805, 859, 910, 980, 1127, 1196, 1274, 1495, 1610, 1718, 1820, 2093, 2254, 2548, 2990, 3185, 3220, 3436, 4186, 4295, 4508, 5635, 5980, 6013, 6370, 8372, 8590, 10465, 11167, 11270, 12026, 12740, 14651, 17180, 19757, 20930, 22334, 22540, 24052, 29302, 30065, 39514, 41860, 42091, 44668, 55835, 58604, 60130, 73255, 78169, 79028, 84182, 98785, 111670, 120260, 138299, 146510, 156338, 168364, 197570, 210455, 223340, 256841, 276598, 293020, 312676, 390845, 395140, 420910, 513682, 547183, 553196, 691495, 781690, 841820, 968093, 1027364, 1094366, 1284205, 1382990, 1563380, 1797887, 1936186, 2188732, 2568410, 2735915, 2765980, 3595774, 3872372, 4840465, 5136820, 5471830, 7191548, 8989435, 9680930, 10943660, 12585209, 17978870, 19361860, 25170418, 35957740, 50340836, 62926045, 125852090, 251704180]

約数ペア:

[(1, 251704180), (2, 125852090), (4, 62926045), (5, 50340836), (7, 35957740), (10, 25170418), (13, 19361860), (14, 17978870), (20, 12585209), (23, 10943660), (26, 9680930), (28, 8989435), (35, 7191548), (46, 5471830), (49, 5136820), (52, 4840465), (65, 3872372), (70, 3595774), (91, 2765980), (92, 2735915), (98, 2568410), (115, 2188732), (130, 1936186), (140, 1797887), (161, 1563380), (182, 1382990), (196, 1284205), (230, 1094366), (245, 1027364), (260, 968093), (299, 841820), (322, 781690), (364, 691495), (455, 553196), (460, 547183), (490, 513682), (598, 420910), (637, 395140), (644, 390845), (805, 312676), (859, 293020), (910, 276598), (980, 256841), (1127, 223340), (1196, 210455), (1274, 197570), (1495, 168364), (1610, 156338), (1718, 146510), (1820, 138299), (2093, 120260), (2254, 111670), (2548, 98785), (2990, 84182), (3185, 79028), (3220, 78169), (3436, 73255), (4186, 60130), (4295, 58604), (4508, 55835), (5635, 44668), (5980, 42091), (6013, 41860), (6370, 39514), (8372, 30065), (8590, 29302), (10465, 24052), (11167, 22540), (11270, 22334), (12026, 20930), (12740, 19757), (14651, 17180)]