1285518720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:441

約数の個数: 256

約数和(自身を含む): 4362336000

約数和(自身を除く): 3076817280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 76, 80, 95, 96, 114, 120, 128, 131, 152, 160, 190, 192, 228, 240, 262, 269, 285, 304, 320, 380, 384, 393, 456, 480, 524, 538, 570, 608, 640, 655, 760, 786, 807, 912, 960, 1048, 1076, 1140, 1216, 1310, 1345, 1520, 1572, 1614, 1824, 1920, 1965, 2096, 2152, 2280, 2432, 2489, 2620, 2690, 3040, 3144, 3228, 3648, 3930, 4035, 4192, 4304, 4560, 4978, 5111, 5240, 5380, 6080, 6288, 6456, 7296, 7467, 7860, 8070, 8384, 8608, 9120, 9956, 10222, 10480, 10760, 12160, 12445, 12576, 12912, 14934, 15333, 15720, 16140, 16768, 17216, 18240, 19912, 20444, 20960, 21520, 24890, 25152, 25555, 25824, 29868, 30666, 31440, 32280, 34432, 35239, 36480, 37335, 39824, 40888, 41920, 43040, 49780, 50304, 51110, 51648, 59736, 61332, 62880, 64560, 70478, 74670, 76665, 79648, 81776, 83840, 86080, 99560, 102220, 103296, 105717, 119472, 122664, 125760, 129120, 140956, 149340, 153330, 159296, 163552, 172160, 176195, 199120, 204440, 211434, 238944, 245328, 251520, 258240, 281912, 298680, 306660, 318592, 327104, 352390, 398240, 408880, 422868, 477888, 490656, 516480, 528585, 563824, 597360, 613320, 654208, 669541, 704780, 796480, 817760, 845736, 955776, 981312, 1057170, 1127648, 1194720, 1226640, 1339082, 1409560, 1592960, 1635520, 1691472, 1962624, 2008623, 2114340, 2255296, 2389440, 2453280, 2678164, 2819120, 3271040, 3347705, 3382944, 4017246, 4228680, 4510592, 4778880, 4906560, 5356328, 5638240, 6695410, 6765888, 8034492, 8457360, 9813120, 10043115, 10712656, 11276480, 13390820, 13531776, 16068984, 16914720, 20086230, 21425312, 22552960, 26781640, 32137968, 33829440, 40172460, 42850624, 53563280, 64275936, 67658880, 80344920, 85701248, 107126560, 128551872, 160689840, 214253120, 257103744, 321379680, 428506240, 642759360, 1285518720]

約数ペア:

[(1, 1285518720), (2, 642759360), (3, 428506240), (4, 321379680), (5, 257103744), (6, 214253120), (8, 160689840), (10, 128551872), (12, 107126560), (15, 85701248), (16, 80344920), (19, 67658880), (20, 64275936), (24, 53563280), (30, 42850624), (32, 40172460), (38, 33829440), (40, 32137968), (48, 26781640), (57, 22552960), (60, 21425312), (64, 20086230), (76, 16914720), (80, 16068984), (95, 13531776), (96, 13390820), (114, 11276480), (120, 10712656), (128, 10043115), (131, 9813120), (152, 8457360), (160, 8034492), (190, 6765888), (192, 6695410), (228, 5638240), (240, 5356328), (262, 4906560), (269, 4778880), (285, 4510592), (304, 4228680), (320, 4017246), (380, 3382944), (384, 3347705), (393, 3271040), (456, 2819120), (480, 2678164), (524, 2453280), (538, 2389440), (570, 2255296), (608, 2114340), (640, 2008623), (655, 1962624), (760, 1691472), (786, 1635520), (807, 1592960), (912, 1409560), (960, 1339082), (1048, 1226640), (1076, 1194720), (1140, 1127648), (1216, 1057170), (1310, 981312), (1345, 955776), (1520, 845736), (1572, 817760), (1614, 796480), (1824, 704780), (1920, 669541), (1965, 654208), (2096, 613320), (2152, 597360), (2280, 563824), (2432, 528585), (2489, 516480), (2620, 490656), (2690, 477888), (3040, 422868), (3144, 408880), (3228, 398240), (3648, 352390), (3930, 327104), (4035, 318592), (4192, 306660), (4304, 298680), (4560, 281912), (4978, 258240), (5111, 251520), (5240, 245328), (5380, 238944), (6080, 211434), (6288, 204440), (6456, 199120), (7296, 176195), (7467, 172160), (7860, 163552), (8070, 159296), (8384, 153330), (8608, 149340), (9120, 140956), (9956, 129120), (10222, 125760), (10480, 122664), (10760, 119472), (12160, 105717), (12445, 103296), (12576, 102220), (12912, 99560), (14934, 86080), (15333, 83840), (15720, 81776), (16140, 79648), (16768, 76665), (17216, 74670), (18240, 70478), (19912, 64560), (20444, 62880), (20960, 61332), (21520, 59736), (24890, 51648), (25152, 51110), (25555, 50304), (25824, 49780), (29868, 43040), (30666, 41920), (31440, 40888), (32280, 39824), (34432, 37335), (35239, 36480)]