20201392940

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1553}}^1\times {\mathrm{2473}}^1$

素因数の和:4298

約数の個数: 48

約数和(自身を含む): 42628880448

約数和(自身を除く): 22427487508

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 1553, 2473, 2630, 3106, 4946, 5260, 6212, 7765, 9892, 12365, 15530, 24730, 31060, 49460, 408439, 650399, 816878, 1300798, 1633756, 2042195, 2601596, 3251995, 3840569, 4084390, 6503990, 7681138, 8168780, 13007980, 15362276, 19202845, 38405690, 76811380, 1010069647, 2020139294, 4040278588, 5050348235, 10100696470, 20201392940]

約数ペア:

[(1, 20201392940), (2, 10100696470), (4, 5050348235), (5, 4040278588), (10, 2020139294), (20, 1010069647), (263, 76811380), (526, 38405690), (1052, 19202845), (1315, 15362276), (1553, 13007980), (2473, 8168780), (2630, 7681138), (3106, 6503990), (4946, 4084390), (5260, 3840569), (6212, 3251995), (7765, 2601596), (9892, 2042195), (12365, 1633756), (15530, 1300798), (24730, 816878), (31060, 650399), (49460, 408439)]