55721900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{42863}}^1$

素因数の和:42890

約数の個数: 36

約数和(自身を含む): 130220832

約数和(自身を除く): 74498932

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 42863, 85726, 171452, 214315, 428630, 557219, 857260, 1071575, 1114438, 2143150, 2228876, 2786095, 4286300, 5572190, 11144380, 13930475, 27860950, 55721900]

約数ペア:

[(1, 55721900), (2, 27860950), (4, 13930475), (5, 11144380), (10, 5572190), (13, 4286300), (20, 2786095), (25, 2228876), (26, 2143150), (50, 1114438), (52, 1071575), (65, 857260), (100, 557219), (130, 428630), (260, 214315), (325, 171452), (650, 85726), (1300, 42863)]