20003128216

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{13249}}^1\times {\mathrm{4603}}^1$

素因数の和:17899

約数の個数: 32

約数和(自身を含む): 38431890000

約数和(自身を除く): 18428761784

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 4603, 9206, 13249, 18412, 26498, 36824, 52996, 105992, 188723, 377446, 543209, 754892, 1086418, 1509784, 2172836, 4345672, 60985147, 121970294, 243940588, 487881176, 2500391027, 5000782054, 10001564108, 20003128216]

約数ペア:

[(1, 20003128216), (2, 10001564108), (4, 5000782054), (8, 2500391027), (41, 487881176), (82, 243940588), (164, 121970294), (328, 60985147), (4603, 4345672), (9206, 2172836), (13249, 1509784), (18412, 1086418), (26498, 754892), (36824, 543209), (52996, 377446), (105992, 188723)]