1285423720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:348

約数の個数: 256

約数和(自身を含む): 3760473600

約数和(自身を除く): 2475049880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 61, 68, 70, 76, 85, 95, 119, 122, 133, 136, 140, 152, 170, 190, 233, 238, 244, 266, 280, 305, 323, 340, 380, 427, 466, 476, 488, 532, 595, 610, 646, 665, 680, 760, 854, 932, 952, 1037, 1064, 1159, 1165, 1190, 1220, 1292, 1330, 1615, 1631, 1708, 1864, 2074, 2135, 2261, 2318, 2330, 2380, 2440, 2584, 2660, 3230, 3262, 3416, 3961, 4148, 4270, 4427, 4522, 4636, 4660, 4760, 5185, 5320, 5795, 6460, 6524, 7259, 7922, 8113, 8155, 8296, 8540, 8854, 9044, 9272, 9320, 10370, 11305, 11590, 12920, 13048, 14213, 14518, 15844, 16226, 16310, 17080, 17708, 18088, 19703, 19805, 20740, 22135, 22610, 23180, 27727, 28426, 29036, 30989, 31688, 32452, 32620, 35416, 36295, 39406, 39610, 40565, 41480, 44270, 45220, 46360, 55454, 56852, 58072, 61978, 64904, 65240, 71065, 72590, 75259, 78812, 79220, 81130, 88540, 90440, 98515, 99491, 110908, 113704, 123956, 137921, 138635, 142130, 145180, 150518, 154945, 157624, 158440, 162260, 177080, 197030, 198982, 221816, 241621, 247912, 270047, 275842, 277270, 284260, 290360, 301036, 309890, 324520, 376295, 394060, 397964, 483242, 497455, 526813, 540094, 551684, 554540, 568520, 602072, 619780, 689605, 752590, 788120, 795928, 966484, 994910, 1053626, 1080188, 1103368, 1109080, 1208105, 1239560, 1350235, 1379210, 1505180, 1691347, 1890329, 1932968, 1989820, 2107252, 2160376, 2416210, 2634065, 2700470, 2758420, 3010360, 3382694, 3780658, 3979640, 4214504, 4590799, 4832420, 5268130, 5400940, 5516840, 6765388, 7561316, 8456735, 9181598, 9451645, 9664840, 10536260, 10801880, 13530776, 15122632, 16913470, 18363196, 18903290, 21072520, 22953995, 32135593, 33826940, 36726392, 37806580, 45907990, 64271186, 67653880, 75613160, 91815980, 128542372, 160677965, 183631960, 257084744, 321355930, 642711860, 1285423720]

約数ペア:

[(1, 1285423720), (2, 642711860), (4, 321355930), (5, 257084744), (7, 183631960), (8, 160677965), (10, 128542372), (14, 91815980), (17, 75613160), (19, 67653880), (20, 64271186), (28, 45907990), (34, 37806580), (35, 36726392), (38, 33826940), (40, 32135593), (56, 22953995), (61, 21072520), (68, 18903290), (70, 18363196), (76, 16913470), (85, 15122632), (95, 13530776), (119, 10801880), (122, 10536260), (133, 9664840), (136, 9451645), (140, 9181598), (152, 8456735), (170, 7561316), (190, 6765388), (233, 5516840), (238, 5400940), (244, 5268130), (266, 4832420), (280, 4590799), (305, 4214504), (323, 3979640), (340, 3780658), (380, 3382694), (427, 3010360), (466, 2758420), (476, 2700470), (488, 2634065), (532, 2416210), (595, 2160376), (610, 2107252), (646, 1989820), (665, 1932968), (680, 1890329), (760, 1691347), (854, 1505180), (932, 1379210), (952, 1350235), (1037, 1239560), (1064, 1208105), (1159, 1109080), (1165, 1103368), (1190, 1080188), (1220, 1053626), (1292, 994910), (1330, 966484), (1615, 795928), (1631, 788120), (1708, 752590), (1864, 689605), (2074, 619780), (2135, 602072), (2261, 568520), (2318, 554540), (2330, 551684), (2380, 540094), (2440, 526813), (2584, 497455), (2660, 483242), (3230, 397964), (3262, 394060), (3416, 376295), (3961, 324520), (4148, 309890), (4270, 301036), (4427, 290360), (4522, 284260), (4636, 277270), (4660, 275842), (4760, 270047), (5185, 247912), (5320, 241621), (5795, 221816), (6460, 198982), (6524, 197030), (7259, 177080), (7922, 162260), (8113, 158440), (8155, 157624), (8296, 154945), (8540, 150518), (8854, 145180), (9044, 142130), (9272, 138635), (9320, 137921), (10370, 123956), (11305, 113704), (11590, 110908), (12920, 99491), (13048, 98515), (14213, 90440), (14518, 88540), (15844, 81130), (16226, 79220), (16310, 78812), (17080, 75259), (17708, 72590), (18088, 71065), (19703, 65240), (19805, 64904), (20740, 61978), (22135, 58072), (22610, 56852), (23180, 55454), (27727, 46360), (28426, 45220), (29036, 44270), (30989, 41480), (31688, 40565), (32452, 39610), (32620, 39406), (35416, 36295)]