2018974460

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1421813}}^1$

素因数の和:1421893

約数の個数: 24

約数和(自身を含む): 4299565536

約数和(自身を除く): 2280591076

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1421813, 2843626, 5687252, 7109065, 14218130, 28436260, 100948723, 201897446, 403794892, 504743615, 1009487230, 2018974460]

約数ペア:

[(1, 2018974460), (2, 1009487230), (4, 504743615), (5, 403794892), (10, 201897446), (20, 100948723), (71, 28436260), (142, 14218130), (284, 7109065), (355, 5687252), (710, 2843626), (1420, 1421813)]