1221268440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{85523}}^1$

素因数の和:85561

約数の個数: 128

約数和(自身を含む): 4433564160

約数和(自身を除く): 3212295720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1785, 2040, 2380, 2856, 3570, 4760, 7140, 14280, 85523, 171046, 256569, 342092, 427615, 513138, 598661, 684184, 855230, 1026276, 1197322, 1282845, 1453891, 1710460, 1795983, 2052552, 2394644, 2565690, 2907782, 2993305, 3420920, 3591966, 4361673, 4789288, 5131380, 5815564, 5986610, 7183932, 7269455, 8723346, 8979915, 10177237, 10262760, 11631128, 11973220, 14367864, 14538910, 17446692, 17959830, 20354474, 21808365, 23946440, 29077820, 30531711, 34893384, 35919660, 40708948, 43616730, 50886185, 58155640, 61063422, 71839320, 81417896, 87233460, 101772370, 122126844, 152658555, 174466920, 203544740, 244253688, 305317110, 407089480, 610634220, 1221268440]

約数ペア:

[(1, 1221268440), (2, 610634220), (3, 407089480), (4, 305317110), (5, 244253688), (6, 203544740), (7, 174466920), (8, 152658555), (10, 122126844), (12, 101772370), (14, 87233460), (15, 81417896), (17, 71839320), (20, 61063422), (21, 58155640), (24, 50886185), (28, 43616730), (30, 40708948), (34, 35919660), (35, 34893384), (40, 30531711), (42, 29077820), (51, 23946440), (56, 21808365), (60, 20354474), (68, 17959830), (70, 17446692), (84, 14538910), (85, 14367864), (102, 11973220), (105, 11631128), (119, 10262760), (120, 10177237), (136, 8979915), (140, 8723346), (168, 7269455), (170, 7183932), (204, 5986610), (210, 5815564), (238, 5131380), (255, 4789288), (280, 4361673), (340, 3591966), (357, 3420920), (408, 2993305), (420, 2907782), (476, 2565690), (510, 2394644), (595, 2052552), (680, 1795983), (714, 1710460), (840, 1453891), (952, 1282845), (1020, 1197322), (1190, 1026276), (1428, 855230), (1785, 684184), (2040, 598661), (2380, 513138), (2856, 427615), (3570, 342092), (4760, 256569), (7140, 171046), (14280, 85523)]