128517840

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{601}}^1$

素因数の和:640

約数の個数: 240

約数和(自身を含む): 489093696

約数和(自身を除く): 360575856

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 81, 88, 90, 99, 108, 110, 120, 132, 135, 144, 162, 165, 176, 180, 198, 216, 220, 240, 243, 264, 270, 297, 324, 330, 360, 396, 405, 432, 440, 486, 495, 528, 540, 594, 601, 648, 660, 720, 792, 810, 880, 891, 972, 990, 1080, 1188, 1202, 1215, 1296, 1320, 1485, 1584, 1620, 1782, 1803, 1944, 1980, 2160, 2376, 2404, 2430, 2640, 2673, 2970, 3005, 3240, 3564, 3606, 3888, 3960, 4455, 4752, 4808, 4860, 5346, 5409, 5940, 6010, 6480, 6611, 7128, 7212, 7920, 8910, 9015, 9616, 9720, 10692, 10818, 11880, 12020, 13222, 13365, 14256, 14424, 16227, 17820, 18030, 19440, 19833, 21384, 21636, 23760, 24040, 26444, 26730, 27045, 28848, 32454, 33055, 35640, 36060, 39666, 42768, 43272, 48080, 48681, 52888, 53460, 54090, 59499, 64908, 66110, 71280, 72120, 79332, 81135, 86544, 97362, 99165, 105776, 106920, 108180, 118998, 129816, 132220, 144240, 146043, 158664, 162270, 178497, 194724, 198330, 213840, 216360, 237996, 243405, 259632, 264440, 292086, 297495, 317328, 324540, 356994, 389448, 396660, 432720, 475992, 486810, 528880, 535491, 584172, 594990, 649080, 713988, 730215, 778896, 793320, 892485, 951984, 973620, 1070982, 1168344, 1189980, 1298160, 1427976, 1460430, 1586640, 1606473, 1784970, 1947240, 2141964, 2336688, 2379960, 2677455, 2855952, 2920860, 3212946, 3569940, 3894480, 4283928, 4759920, 5354910, 5841720, 6425892, 7139880, 8032365, 8567856, 10709820, 11683440, 12851784, 14279760, 16064730, 21419640, 25703568, 32129460, 42839280, 64258920, 128517840]

約数ペア:

[(1, 128517840), (2, 64258920), (3, 42839280), (4, 32129460), (5, 25703568), (6, 21419640), (8, 16064730), (9, 14279760), (10, 12851784), (11, 11683440), (12, 10709820), (15, 8567856), (16, 8032365), (18, 7139880), (20, 6425892), (22, 5841720), (24, 5354910), (27, 4759920), (30, 4283928), (33, 3894480), (36, 3569940), (40, 3212946), (44, 2920860), (45, 2855952), (48, 2677455), (54, 2379960), (55, 2336688), (60, 2141964), (66, 1947240), (72, 1784970), (80, 1606473), (81, 1586640), (88, 1460430), (90, 1427976), (99, 1298160), (108, 1189980), (110, 1168344), (120, 1070982), (132, 973620), (135, 951984), (144, 892485), (162, 793320), (165, 778896), (176, 730215), (180, 713988), (198, 649080), (216, 594990), (220, 584172), (240, 535491), (243, 528880), (264, 486810), (270, 475992), (297, 432720), (324, 396660), (330, 389448), (360, 356994), (396, 324540), (405, 317328), (432, 297495), (440, 292086), (486, 264440), (495, 259632), (528, 243405), (540, 237996), (594, 216360), (601, 213840), (648, 198330), (660, 194724), (720, 178497), (792, 162270), (810, 158664), (880, 146043), (891, 144240), (972, 132220), (990, 129816), (1080, 118998), (1188, 108180), (1202, 106920), (1215, 105776), (1296, 99165), (1320, 97362), (1485, 86544), (1584, 81135), (1620, 79332), (1782, 72120), (1803, 71280), (1944, 66110), (1980, 64908), (2160, 59499), (2376, 54090), (2404, 53460), (2430, 52888), (2640, 48681), (2673, 48080), (2970, 43272), (3005, 42768), (3240, 39666), (3564, 36060), (3606, 35640), (3888, 33055), (3960, 32454), (4455, 28848), (4752, 27045), (4808, 26730), (4860, 26444), (5346, 24040), (5409, 23760), (5940, 21636), (6010, 21384), (6480, 19833), (6611, 19440), (7128, 18030), (7212, 17820), (7920, 16227), (8910, 14424), (9015, 14256), (9616, 13365), (9720, 13222), (10692, 12020), (10818, 11880)]