39980260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{6917}}^1$

素因数の和:6960

約数の個数: 36

約数和(自身を含む): 89200692

約数和(自身を除く): 49220432

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 6917, 13834, 27668, 34585, 69170, 117589, 138340, 235178, 470356, 587945, 1175890, 1999013, 2351780, 3998026, 7996052, 9995065, 19990130, 39980260]

約数ペア:

[(1, 39980260), (2, 19990130), (4, 9995065), (5, 7996052), (10, 3998026), (17, 2351780), (20, 1999013), (34, 1175890), (68, 587945), (85, 470356), (170, 235178), (289, 138340), (340, 117589), (578, 69170), (1156, 34585), (1445, 27668), (2890, 13834), (5780, 6917)]