281221956

素因数分解:

$2^2\times 3^7\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 192

約数和(自身を含む): 819947520

約数和(自身を除く): 538725564

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 31, 34, 36, 51, 54, 61, 62, 68, 81, 93, 102, 108, 122, 124, 153, 162, 183, 186, 204, 243, 244, 279, 306, 324, 366, 372, 459, 486, 527, 549, 558, 612, 729, 732, 837, 918, 972, 1037, 1054, 1098, 1116, 1377, 1458, 1581, 1647, 1674, 1836, 1891, 2074, 2108, 2187, 2196, 2511, 2754, 2916, 3111, 3162, 3294, 3348, 3782, 4131, 4148, 4374, 4743, 4941, 5022, 5508, 5673, 6222, 6324, 6588, 7533, 7564, 8262, 8748, 9333, 9486, 9882, 10044, 11346, 12393, 12444, 14229, 14823, 15066, 16524, 17019, 18666, 18972, 19764, 22599, 22692, 24786, 27999, 28458, 29646, 30132, 32147, 34038, 37179, 37332, 42687, 44469, 45198, 49572, 51057, 55998, 56916, 59292, 64294, 67797, 68076, 74358, 83997, 85374, 88938, 90396, 96441, 102114, 111996, 128061, 128588, 133407, 135594, 148716, 153171, 167994, 170748, 177876, 192882, 204228, 251991, 256122, 266814, 271188, 289323, 306342, 335988, 384183, 385764, 459513, 503982, 512244, 533628, 578646, 612684, 755973, 768366, 867969, 919026, 1007964, 1152549, 1157292, 1378539, 1511946, 1536732, 1735938, 1838052, 2267919, 2305098, 2603907, 2757078, 3023892, 3471876, 4135617, 4535838, 4610196, 5207814, 5514156, 7811721, 8271234, 9071676, 10415628, 15623442, 16542468, 23435163, 31246884, 46870326, 70305489, 93740652, 140610978, 281221956]

約数ペア:

[(1, 281221956), (2, 140610978), (3, 93740652), (4, 70305489), (6, 46870326), (9, 31246884), (12, 23435163), (17, 16542468), (18, 15623442), (27, 10415628), (31, 9071676), (34, 8271234), (36, 7811721), (51, 5514156), (54, 5207814), (61, 4610196), (62, 4535838), (68, 4135617), (81, 3471876), (93, 3023892), (102, 2757078), (108, 2603907), (122, 2305098), (124, 2267919), (153, 1838052), (162, 1735938), (183, 1536732), (186, 1511946), (204, 1378539), (243, 1157292), (244, 1152549), (279, 1007964), (306, 919026), (324, 867969), (366, 768366), (372, 755973), (459, 612684), (486, 578646), (527, 533628), (549, 512244), (558, 503982), (612, 459513), (729, 385764), (732, 384183), (837, 335988), (918, 306342), (972, 289323), (1037, 271188), (1054, 266814), (1098, 256122), (1116, 251991), (1377, 204228), (1458, 192882), (1581, 177876), (1647, 170748), (1674, 167994), (1836, 153171), (1891, 148716), (2074, 135594), (2108, 133407), (2187, 128588), (2196, 128061), (2511, 111996), (2754, 102114), (2916, 96441), (3111, 90396), (3162, 88938), (3294, 85374), (3348, 83997), (3782, 74358), (4131, 68076), (4148, 67797), (4374, 64294), (4743, 59292), (4941, 56916), (5022, 55998), (5508, 51057), (5673, 49572), (6222, 45198), (6324, 44469), (6588, 42687), (7533, 37332), (7564, 37179), (8262, 34038), (8748, 32147), (9333, 30132), (9486, 29646), (9882, 28458), (10044, 27999), (11346, 24786), (12393, 22692), (12444, 22599), (14229, 19764), (14823, 18972), (15066, 18666), (16524, 17019)]