20788920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19249}}^1$

素因数の和:19269

約数の個数: 64

約数和(自身を含む): 69300000

約数和(自身を除く): 48511080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19249, 38498, 57747, 76996, 96245, 115494, 153992, 173241, 192490, 230988, 288735, 346482, 384980, 461976, 519723, 577470, 692964, 769960, 866205, 1039446, 1154940, 1385928, 1732410, 2078892, 2309880, 2598615, 3464820, 4157784, 5197230, 6929640, 10394460, 20788920]

約数ペア:

[(1, 20788920), (2, 10394460), (3, 6929640), (4, 5197230), (5, 4157784), (6, 3464820), (8, 2598615), (9, 2309880), (10, 2078892), (12, 1732410), (15, 1385928), (18, 1154940), (20, 1039446), (24, 866205), (27, 769960), (30, 692964), (36, 577470), (40, 519723), (45, 461976), (54, 384980), (60, 346482), (72, 288735), (90, 230988), (108, 192490), (120, 173241), (135, 153992), (180, 115494), (216, 96245), (270, 76996), (360, 57747), (540, 38498), (1080, 19249)]