20930890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{269}}^1$

素因数の和:558

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18260150

約数列:

[1, 2, 5, 10, 31, 62, 155, 251, 269, 310, 502, 538, 1255, 1345, 2510, 2690, 7781, 8339, 15562, 16678, 38905, 41695, 67519, 77810, 83390, 135038, 337595, 675190, 2093089, 4186178, 10465445, 20930890]

約数ペア:

[(1, 20930890), (2, 10465445), (5, 4186178), (10, 2093089), (31, 675190), (62, 337595), (155, 135038), (251, 83390), (269, 77810), (310, 67519), (502, 41695), (538, 38905), (1255, 16678), (1345, 15562), (2510, 8339), (2690, 7781)]