160021880

素因数分解:

$2^3\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{3203}}^1$

素因数の和:4463

約数の個数: 32

約数和(自身を含む): 360450000

約数和(自身を除く): 200428120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1249, 2498, 3203, 4996, 6245, 6406, 9992, 12490, 12812, 16015, 24980, 25624, 32030, 49960, 64060, 128120, 4000547, 8001094, 16002188, 20002735, 32004376, 40005470, 80010940, 160021880]

約数ペア:

[(1, 160021880), (2, 80010940), (4, 40005470), (5, 32004376), (8, 20002735), (10, 16002188), (20, 8001094), (40, 4000547), (1249, 128120), (2498, 64060), (3203, 49960), (4996, 32030), (6245, 25624), (6406, 24980), (9992, 16015), (12490, 12812)]