721284192

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{80789}}^1$

素因数の和:80836

約数の個数: 72

約数和(自身を含む): 2117344320

約数和(自身を除く): 1396060128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 72, 93, 96, 124, 144, 186, 248, 279, 288, 372, 496, 558, 744, 992, 1116, 1488, 2232, 2976, 4464, 8928, 80789, 161578, 242367, 323156, 484734, 646312, 727101, 969468, 1292624, 1454202, 1938936, 2504459, 2585248, 2908404, 3877872, 5008918, 5816808, 7513377, 7755744, 10017836, 11633616, 15026754, 20035672, 22540131, 23267232, 30053508, 40071344, 45080262, 60107016, 80142688, 90160524, 120214032, 180321048, 240428064, 360642096, 721284192]

約数ペア:

[(1, 721284192), (2, 360642096), (3, 240428064), (4, 180321048), (6, 120214032), (8, 90160524), (9, 80142688), (12, 60107016), (16, 45080262), (18, 40071344), (24, 30053508), (31, 23267232), (32, 22540131), (36, 20035672), (48, 15026754), (62, 11633616), (72, 10017836), (93, 7755744), (96, 7513377), (124, 5816808), (144, 5008918), (186, 3877872), (248, 2908404), (279, 2585248), (288, 2504459), (372, 1938936), (496, 1454202), (558, 1292624), (744, 969468), (992, 727101), (1116, 646312), (1488, 484734), (2232, 323156), (2976, 242367), (4464, 161578), (8928, 80789)]