20298560

素因数分解:

$2^6\times 5^1\times {\mathrm{229}}^1\times {\mathrm{277}}^1$

素因数の和:523

約数の個数: 56

約数和(自身を含む): 48722280

約数和(自身を除く): 28423720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 229, 277, 320, 458, 554, 916, 1108, 1145, 1385, 1832, 2216, 2290, 2770, 3664, 4432, 4580, 5540, 7328, 8864, 9160, 11080, 14656, 17728, 18320, 22160, 36640, 44320, 63433, 73280, 88640, 126866, 253732, 317165, 507464, 634330, 1014928, 1268660, 2029856, 2537320, 4059712, 5074640, 10149280, 20298560]

約数ペア:

[(1, 20298560), (2, 10149280), (4, 5074640), (5, 4059712), (8, 2537320), (10, 2029856), (16, 1268660), (20, 1014928), (32, 634330), (40, 507464), (64, 317165), (80, 253732), (160, 126866), (229, 88640), (277, 73280), (320, 63433), (458, 44320), (554, 36640), (916, 22160), (1108, 18320), (1145, 17728), (1385, 14656), (1832, 11080), (2216, 9160), (2290, 8864), (2770, 7328), (3664, 5540), (4432, 4580)]