210530720

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 144

約数和(自身を含む): 550058040

約数和(自身を除く): 339527320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 32, 34, 40, 58, 68, 80, 85, 116, 136, 145, 157, 160, 170, 232, 272, 289, 290, 314, 340, 464, 493, 544, 578, 580, 628, 680, 785, 928, 986, 1156, 1160, 1256, 1360, 1445, 1570, 1972, 2312, 2320, 2465, 2512, 2669, 2720, 2890, 3140, 3944, 4553, 4624, 4640, 4930, 5024, 5338, 5780, 6280, 7888, 8381, 9106, 9248, 9860, 10676, 11560, 12560, 13345, 15776, 16762, 18212, 19720, 21352, 22765, 23120, 25120, 26690, 33524, 36424, 39440, 41905, 42704, 45373, 45530, 46240, 53380, 67048, 72848, 77401, 78880, 83810, 85408, 90746, 91060, 106760, 134096, 145696, 154802, 167620, 181492, 182120, 213520, 226865, 268192, 309604, 335240, 362984, 364240, 387005, 427040, 453730, 619208, 670480, 725968, 728480, 774010, 907460, 1238416, 1315817, 1340960, 1451936, 1548020, 1814920, 2476832, 2631634, 3096040, 3629840, 5263268, 6192080, 6579085, 7259680, 10526536, 12384160, 13158170, 21053072, 26316340, 42106144, 52632680, 105265360, 210530720]

約数ペア:

[(1, 210530720), (2, 105265360), (4, 52632680), (5, 42106144), (8, 26316340), (10, 21053072), (16, 13158170), (17, 12384160), (20, 10526536), (29, 7259680), (32, 6579085), (34, 6192080), (40, 5263268), (58, 3629840), (68, 3096040), (80, 2631634), (85, 2476832), (116, 1814920), (136, 1548020), (145, 1451936), (157, 1340960), (160, 1315817), (170, 1238416), (232, 907460), (272, 774010), (289, 728480), (290, 725968), (314, 670480), (340, 619208), (464, 453730), (493, 427040), (544, 387005), (578, 364240), (580, 362984), (628, 335240), (680, 309604), (785, 268192), (928, 226865), (986, 213520), (1156, 182120), (1160, 181492), (1256, 167620), (1360, 154802), (1445, 145696), (1570, 134096), (1972, 106760), (2312, 91060), (2320, 90746), (2465, 85408), (2512, 83810), (2669, 78880), (2720, 77401), (2890, 72848), (3140, 67048), (3944, 53380), (4553, 46240), (4624, 45530), (4640, 45373), (4930, 42704), (5024, 41905), (5338, 39440), (5780, 36424), (6280, 33524), (7888, 26690), (8381, 25120), (9106, 23120), (9248, 22765), (9860, 21352), (10676, 19720), (11560, 18212), (12560, 16762), (13345, 15776)]