20161880440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1250737}}^1$

素因数の和:1250792

約数の個数: 64

約数和(自身を含む): 50429756160

約数和(自身を除く): 30267875720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 1250737, 2501474, 5002948, 6253685, 10005896, 12507370, 16259581, 25014740, 32519162, 38772847, 50029480, 65038324, 77545694, 81297905, 130076648, 155091388, 162595810, 193864235, 310182776, 325191620, 387728470, 504047011, 650383240, 775456940, 1008094022, 1550913880, 2016188044, 2520235055, 4032376088, 5040470110, 10080940220, 20161880440]

約数ペア:

[(1, 20161880440), (2, 10080940220), (4, 5040470110), (5, 4032376088), (8, 2520235055), (10, 2016188044), (13, 1550913880), (20, 1008094022), (26, 775456940), (31, 650383240), (40, 504047011), (52, 387728470), (62, 325191620), (65, 310182776), (104, 193864235), (124, 162595810), (130, 155091388), (155, 130076648), (248, 81297905), (260, 77545694), (310, 65038324), (403, 50029480), (520, 38772847), (620, 32519162), (806, 25014740), (1240, 16259581), (1612, 12507370), (2015, 10005896), (3224, 6253685), (4030, 5002948), (8060, 2501474), (16120, 1250737)]