16731320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 39536640

約数和(自身を除く): 22805320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 103, 124, 131, 155, 206, 248, 262, 310, 412, 515, 524, 620, 655, 824, 1030, 1048, 1240, 1310, 2060, 2620, 3193, 4061, 4120, 5240, 6386, 8122, 12772, 13493, 15965, 16244, 20305, 25544, 26986, 31930, 32488, 40610, 53972, 63860, 67465, 81220, 107944, 127720, 134930, 162440, 269860, 418283, 539720, 836566, 1673132, 2091415, 3346264, 4182830, 8365660, 16731320]

約数ペア:

[(1, 16731320), (2, 8365660), (4, 4182830), (5, 3346264), (8, 2091415), (10, 1673132), (20, 836566), (31, 539720), (40, 418283), (62, 269860), (103, 162440), (124, 134930), (131, 127720), (155, 107944), (206, 81220), (248, 67465), (262, 63860), (310, 53972), (412, 40610), (515, 32488), (524, 31930), (620, 26986), (655, 25544), (824, 20305), (1030, 16244), (1048, 15965), (1240, 13493), (1310, 12772), (2060, 8122), (2620, 6386), (3193, 5240), (4061, 4120)]