205900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:114

約数の個数: 36

約数和(自身を含む): 468720

約数和(自身を除く): 262820

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 71, 100, 116, 142, 145, 284, 290, 355, 580, 710, 725, 1420, 1450, 1775, 2059, 2900, 3550, 4118, 7100, 8236, 10295, 20590, 41180, 51475, 102950, 205900]

約数ペア:

[(1, 205900), (2, 102950), (4, 51475), (5, 41180), (10, 20590), (20, 10295), (25, 8236), (29, 7100), (50, 4118), (58, 3550), (71, 2900), (100, 2059), (116, 1775), (142, 1450), (145, 1420), (284, 725), (290, 710), (355, 580)]