247705290

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{79}}^2$

素因数の和:191

約数の個数: 180

約数和(自身を含む): 784726866

約数和(自身を除く): 537021576

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 79, 81, 90, 98, 105, 126, 135, 147, 158, 162, 189, 210, 237, 245, 270, 294, 315, 378, 395, 405, 441, 474, 490, 553, 567, 630, 711, 735, 790, 810, 882, 945, 1106, 1134, 1185, 1323, 1422, 1470, 1659, 1890, 2133, 2205, 2370, 2646, 2765, 2835, 3318, 3555, 3871, 3969, 4266, 4410, 4977, 5530, 5670, 6241, 6399, 6615, 7110, 7742, 7938, 8295, 9954, 10665, 11613, 12482, 12798, 13230, 14931, 16590, 18723, 19355, 19845, 21330, 23226, 24885, 29862, 31205, 31995, 34839, 37446, 38710, 39690, 43687, 44793, 49770, 56169, 58065, 62410, 63990, 69678, 74655, 87374, 89586, 93615, 104517, 112338, 116130, 131061, 149310, 168507, 174195, 187230, 209034, 218435, 223965, 262122, 280845, 305809, 313551, 337014, 348390, 393183, 436870, 447930, 505521, 522585, 561690, 611618, 627102, 655305, 786366, 842535, 917427, 1011042, 1045170, 1179549, 1310610, 1529045, 1567755, 1685070, 1834854, 1965915, 2359098, 2527605, 2752281, 3058090, 3135510, 3538647, 3931830, 4587135, 5055210, 5504562, 5897745, 7077294, 8256843, 9174270, 11795490, 13761405, 16513686, 17693235, 24770529, 27522810, 35386470, 41284215, 49541058, 82568430, 123852645, 247705290]

約数ペア:

[(1, 247705290), (2, 123852645), (3, 82568430), (5, 49541058), (6, 41284215), (7, 35386470), (9, 27522810), (10, 24770529), (14, 17693235), (15, 16513686), (18, 13761405), (21, 11795490), (27, 9174270), (30, 8256843), (35, 7077294), (42, 5897745), (45, 5504562), (49, 5055210), (54, 4587135), (63, 3931830), (70, 3538647), (79, 3135510), (81, 3058090), (90, 2752281), (98, 2527605), (105, 2359098), (126, 1965915), (135, 1834854), (147, 1685070), (158, 1567755), (162, 1529045), (189, 1310610), (210, 1179549), (237, 1045170), (245, 1011042), (270, 917427), (294, 842535), (315, 786366), (378, 655305), (395, 627102), (405, 611618), (441, 561690), (474, 522585), (490, 505521), (553, 447930), (567, 436870), (630, 393183), (711, 348390), (735, 337014), (790, 313551), (810, 305809), (882, 280845), (945, 262122), (1106, 223965), (1134, 218435), (1185, 209034), (1323, 187230), (1422, 174195), (1470, 168507), (1659, 149310), (1890, 131061), (2133, 116130), (2205, 112338), (2370, 104517), (2646, 93615), (2765, 89586), (2835, 87374), (3318, 74655), (3555, 69678), (3871, 63990), (3969, 62410), (4266, 58065), (4410, 56169), (4977, 49770), (5530, 44793), (5670, 43687), (6241, 39690), (6399, 38710), (6615, 37446), (7110, 34839), (7742, 31995), (7938, 31205), (8295, 29862), (9954, 24885), (10665, 23226), (11613, 21330), (12482, 19845), (12798, 19355), (13230, 18723), (14931, 16590)]