20607560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16619}}^1$

素因数の和:16661

約数の個数: 32

約数和(自身を含む): 47865600

約数和(自身を除く): 27258040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16619, 33238, 66476, 83095, 132952, 166190, 332380, 515189, 664760, 1030378, 2060756, 2575945, 4121512, 5151890, 10303780, 20607560]

約数ペア:

[(1, 20607560), (2, 10303780), (4, 5151890), (5, 4121512), (8, 2575945), (10, 2060756), (20, 1030378), (31, 664760), (40, 515189), (62, 332380), (124, 166190), (155, 132952), (248, 83095), (310, 66476), (620, 33238), (1240, 16619)]