1397193820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1\times {\mathrm{281}}^1$

素因数の和:631

約数の個数: 96

約数和(自身を含む): 3259279296

約数和(自身を除く): 1862085476

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 233, 281, 388, 466, 485, 562, 932, 970, 1067, 1124, 1165, 1405, 1940, 2134, 2330, 2563, 2810, 3091, 4268, 4660, 5126, 5335, 5620, 6182, 10252, 10670, 12364, 12815, 15455, 21340, 22601, 25630, 27257, 30910, 45202, 51260, 54514, 61820, 65473, 90404, 109028, 113005, 130946, 136285, 226010, 248611, 261892, 272570, 299827, 327365, 452020, 497222, 545140, 599654, 654730, 720203, 994444, 1199308, 1243055, 1309460, 1440406, 1499135, 2486110, 2880812, 2998270, 3601015, 4972220, 5996540, 6350881, 7202030, 12701762, 14404060, 25403524, 31754405, 63508810, 69859691, 127017620, 139719382, 279438764, 349298455, 698596910, 1397193820]

約数ペア:

[(1, 1397193820), (2, 698596910), (4, 349298455), (5, 279438764), (10, 139719382), (11, 127017620), (20, 69859691), (22, 63508810), (44, 31754405), (55, 25403524), (97, 14404060), (110, 12701762), (194, 7202030), (220, 6350881), (233, 5996540), (281, 4972220), (388, 3601015), (466, 2998270), (485, 2880812), (562, 2486110), (932, 1499135), (970, 1440406), (1067, 1309460), (1124, 1243055), (1165, 1199308), (1405, 994444), (1940, 720203), (2134, 654730), (2330, 599654), (2563, 545140), (2810, 497222), (3091, 452020), (4268, 327365), (4660, 299827), (5126, 272570), (5335, 261892), (5620, 248611), (6182, 226010), (10252, 136285), (10670, 130946), (12364, 113005), (12815, 109028), (15455, 90404), (21340, 65473), (22601, 61820), (25630, 54514), (27257, 51260), (30910, 45202)]