20189766468

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{640457}}^1$

素因数の和:640572

約数の個数: 48

約数和(自身を含む): 49064206464

約数和(自身を除く): 28874439996

約数列:

[1, 2, 3, 4, 6, 12, 37, 71, 74, 111, 142, 148, 213, 222, 284, 426, 444, 852, 2627, 5254, 7881, 10508, 15762, 31524, 640457, 1280914, 1921371, 2561828, 3842742, 7685484, 23696909, 45472447, 47393818, 71090727, 90944894, 94787636, 136417341, 142181454, 181889788, 272834682, 284362908, 545669364, 1682480539, 3364961078, 5047441617, 6729922156, 10094883234, 20189766468]

約数ペア:

[(1, 20189766468), (2, 10094883234), (3, 6729922156), (4, 5047441617), (6, 3364961078), (12, 1682480539), (37, 545669364), (71, 284362908), (74, 272834682), (111, 181889788), (142, 142181454), (148, 136417341), (213, 94787636), (222, 90944894), (284, 71090727), (426, 47393818), (444, 45472447), (852, 23696909), (2627, 7685484), (5254, 3842742), (7881, 2561828), (10508, 1921371), (15762, 1280914), (31524, 640457)]