20565209844

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{1997}}^1\times {\mathrm{6977}}^1$

素因数の和:9025

約数の個数: 72

約数和(自身を含む): 53286492168

約数和(自身を除く): 32721282324

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 369, 492, 738, 1476, 1997, 3994, 5991, 6977, 7988, 11982, 13954, 17973, 20931, 23964, 27908, 35946, 41862, 62793, 71892, 81877, 83724, 125586, 163754, 245631, 251172, 286057, 327508, 491262, 572114, 736893, 858171, 982524, 1144228, 1473786, 1716342, 2574513, 2947572, 3432684, 5149026, 10298052, 13933069, 27866138, 41799207, 55732276, 83598414, 125397621, 167196828, 250795242, 501590484, 571255829, 1142511658, 1713767487, 2285023316, 3427534974, 5141302461, 6855069948, 10282604922, 20565209844]

約数ペア:

[(1, 20565209844), (2, 10282604922), (3, 6855069948), (4, 5141302461), (6, 3427534974), (9, 2285023316), (12, 1713767487), (18, 1142511658), (36, 571255829), (41, 501590484), (82, 250795242), (123, 167196828), (164, 125397621), (246, 83598414), (369, 55732276), (492, 41799207), (738, 27866138), (1476, 13933069), (1997, 10298052), (3994, 5149026), (5991, 3432684), (6977, 2947572), (7988, 2574513), (11982, 1716342), (13954, 1473786), (17973, 1144228), (20931, 982524), (23964, 858171), (27908, 736893), (35946, 572114), (41862, 491262), (62793, 327508), (71892, 286057), (81877, 251172), (83724, 245631), (125586, 163754)]