20163578840

素因数分解:

$2^3\times 5^1\times {\mathrm{16963}}^1\times {\mathrm{29717}}^1$

素因数の和:46691

約数の個数: 32

約数和(自身を含む): 45372253680

約数和(自身を除く): 25208674840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 16963, 29717, 33926, 59434, 67852, 84815, 118868, 135704, 148585, 169630, 237736, 297170, 339260, 594340, 678520, 1188680, 504089471, 1008178942, 2016357884, 2520447355, 4032715768, 5040894710, 10081789420, 20163578840]

約数ペア:

[(1, 20163578840), (2, 10081789420), (4, 5040894710), (5, 4032715768), (8, 2520447355), (10, 2016357884), (20, 1008178942), (40, 504089471), (16963, 1188680), (29717, 678520), (33926, 594340), (59434, 339260), (67852, 297170), (84815, 237736), (118868, 169630), (135704, 148585)]