81327060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1973}}^1$

素因数の和:2217

約数の個数: 72

約数和(自身を含む): 247894920

約数和(自身を除く): 166567860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 458, 687, 916, 1145, 1374, 1973, 2061, 2290, 2748, 3435, 3946, 4122, 4580, 5919, 6870, 7892, 8244, 9865, 10305, 11838, 13740, 17757, 19730, 20610, 23676, 29595, 35514, 39460, 41220, 59190, 71028, 88785, 118380, 177570, 355140, 451817, 903634, 1355451, 1807268, 2259085, 2710902, 4066353, 4518170, 5421804, 6777255, 8132706, 9036340, 13554510, 16265412, 20331765, 27109020, 40663530, 81327060]

約数ペア:

[(1, 81327060), (2, 40663530), (3, 27109020), (4, 20331765), (5, 16265412), (6, 13554510), (9, 9036340), (10, 8132706), (12, 6777255), (15, 5421804), (18, 4518170), (20, 4066353), (30, 2710902), (36, 2259085), (45, 1807268), (60, 1355451), (90, 903634), (180, 451817), (229, 355140), (458, 177570), (687, 118380), (916, 88785), (1145, 71028), (1374, 59190), (1973, 41220), (2061, 39460), (2290, 35514), (2748, 29595), (3435, 23676), (3946, 20610), (4122, 19730), (4580, 17757), (5919, 13740), (6870, 11838), (7892, 10305), (8244, 9865)]