20653120

素因数分解:

$2^6\times 5^1\times {\mathrm{233}}^1\times {\mathrm{277}}^1$

素因数の和:527

約数の個数: 56

約数和(自身を含む): 49569624

約数和(自身を除く): 28916504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 233, 277, 320, 466, 554, 932, 1108, 1165, 1385, 1864, 2216, 2330, 2770, 3728, 4432, 4660, 5540, 7456, 8864, 9320, 11080, 14912, 17728, 18640, 22160, 37280, 44320, 64541, 74560, 88640, 129082, 258164, 322705, 516328, 645410, 1032656, 1290820, 2065312, 2581640, 4130624, 5163280, 10326560, 20653120]

約数ペア:

[(1, 20653120), (2, 10326560), (4, 5163280), (5, 4130624), (8, 2581640), (10, 2065312), (16, 1290820), (20, 1032656), (32, 645410), (40, 516328), (64, 322705), (80, 258164), (160, 129082), (233, 88640), (277, 74560), (320, 64541), (466, 44320), (554, 37280), (932, 22160), (1108, 18640), (1165, 17728), (1385, 14912), (1864, 11080), (2216, 9320), (2330, 8864), (2770, 7456), (3728, 5540), (4432, 4660)]