278128890

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{433}}^1$

素因数の和:526

約数の個数: 160

約数和(自身を含む): 820478736

約数和(自身を除く): 542349846

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 61, 65, 78, 81, 90, 117, 122, 130, 135, 162, 183, 195, 234, 270, 305, 351, 366, 390, 405, 433, 549, 585, 610, 702, 793, 810, 866, 915, 1053, 1098, 1170, 1299, 1586, 1647, 1755, 1830, 2106, 2165, 2379, 2598, 2745, 3294, 3510, 3897, 3965, 4330, 4758, 4941, 5265, 5490, 5629, 6495, 7137, 7794, 7930, 8235, 9882, 10530, 11258, 11691, 11895, 12990, 14274, 16470, 16887, 19485, 21411, 23382, 23790, 24705, 26413, 28145, 33774, 35073, 35685, 38970, 42822, 49410, 50661, 52826, 56290, 58455, 64233, 70146, 71370, 79239, 84435, 101322, 107055, 116910, 128466, 132065, 151983, 158478, 168870, 175365, 214110, 237717, 253305, 264130, 303966, 321165, 343369, 350730, 396195, 455949, 475434, 506610, 642330, 686738, 713151, 759915, 792390, 911898, 1030107, 1188585, 1426302, 1519830, 1716845, 2060214, 2139453, 2279745, 2377170, 3090321, 3433690, 3565755, 4278906, 4559490, 5150535, 6180642, 7131510, 9270963, 10301070, 10697265, 15451605, 18541926, 21394530, 27812889, 30903210, 46354815, 55625778, 92709630, 139064445, 278128890]

約数ペア:

[(1, 278128890), (2, 139064445), (3, 92709630), (5, 55625778), (6, 46354815), (9, 30903210), (10, 27812889), (13, 21394530), (15, 18541926), (18, 15451605), (26, 10697265), (27, 10301070), (30, 9270963), (39, 7131510), (45, 6180642), (54, 5150535), (61, 4559490), (65, 4278906), (78, 3565755), (81, 3433690), (90, 3090321), (117, 2377170), (122, 2279745), (130, 2139453), (135, 2060214), (162, 1716845), (183, 1519830), (195, 1426302), (234, 1188585), (270, 1030107), (305, 911898), (351, 792390), (366, 759915), (390, 713151), (405, 686738), (433, 642330), (549, 506610), (585, 475434), (610, 455949), (702, 396195), (793, 350730), (810, 343369), (866, 321165), (915, 303966), (1053, 264130), (1098, 253305), (1170, 237717), (1299, 214110), (1586, 175365), (1647, 168870), (1755, 158478), (1830, 151983), (2106, 132065), (2165, 128466), (2379, 116910), (2598, 107055), (2745, 101322), (3294, 84435), (3510, 79239), (3897, 71370), (3965, 70146), (4330, 64233), (4758, 58455), (4941, 56290), (5265, 52826), (5490, 50661), (5629, 49410), (6495, 42822), (7137, 38970), (7794, 35685), (7930, 35073), (8235, 33774), (9882, 28145), (10530, 26413), (11258, 24705), (11691, 23790), (11895, 23382), (12990, 21411), (14274, 19485), (16470, 16887)]