23171560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 31260440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 199, 205, 284, 328, 355, 398, 410, 568, 710, 796, 820, 995, 1420, 1592, 1640, 1990, 2840, 2911, 3980, 5822, 7960, 8159, 11644, 14129, 14555, 16318, 23288, 28258, 29110, 32636, 40795, 56516, 58220, 65272, 70645, 81590, 113032, 116440, 141290, 163180, 282580, 326360, 565160, 579289, 1158578, 2317156, 2896445, 4634312, 5792890, 11585780, 23171560]

約数ペア:

[(1, 23171560), (2, 11585780), (4, 5792890), (5, 4634312), (8, 2896445), (10, 2317156), (20, 1158578), (40, 579289), (41, 565160), (71, 326360), (82, 282580), (142, 163180), (164, 141290), (199, 116440), (205, 113032), (284, 81590), (328, 70645), (355, 65272), (398, 58220), (410, 56516), (568, 40795), (710, 32636), (796, 29110), (820, 28258), (995, 23288), (1420, 16318), (1592, 14555), (1640, 14129), (1990, 11644), (2840, 8159), (2911, 7960), (3980, 5822)]