20218842680

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{816593}}^1$

素因数の和:817223

約数の個数: 32

約数和(自身を含む): 45565945200

約数和(自身を除く): 25347102520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 1238, 2476, 3095, 4952, 6190, 12380, 24760, 816593, 1633186, 3266372, 4082965, 6532744, 8165930, 16331860, 32663720, 505471067, 1010942134, 2021884268, 2527355335, 4043768536, 5054710670, 10109421340, 20218842680]

約数ペア:

[(1, 20218842680), (2, 10109421340), (4, 5054710670), (5, 4043768536), (8, 2527355335), (10, 2021884268), (20, 1010942134), (40, 505471067), (619, 32663720), (1238, 16331860), (2476, 8165930), (3095, 6532744), (4952, 4082965), (6190, 3266372), (12380, 1633186), (24760, 816593)]