20168792920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{327203}}^1$

素因数の和:327304

約数の個数: 64

約数和(自身を含む): 48059723520

約数和(自身を除く): 27890930600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 67, 92, 115, 134, 184, 230, 268, 335, 460, 536, 670, 920, 1340, 1541, 2680, 3082, 6164, 7705, 12328, 15410, 30820, 61640, 327203, 654406, 1308812, 1636015, 2617624, 3272030, 6544060, 7525669, 13088120, 15051338, 21922601, 30102676, 37628345, 43845202, 60205352, 75256690, 87690404, 109613005, 150513380, 175380808, 219226010, 301026760, 438452020, 504219823, 876904040, 1008439646, 2016879292, 2521099115, 4033758584, 5042198230, 10084396460, 20168792920]

約数ペア:

[(1, 20168792920), (2, 10084396460), (4, 5042198230), (5, 4033758584), (8, 2521099115), (10, 2016879292), (20, 1008439646), (23, 876904040), (40, 504219823), (46, 438452020), (67, 301026760), (92, 219226010), (115, 175380808), (134, 150513380), (184, 109613005), (230, 87690404), (268, 75256690), (335, 60205352), (460, 43845202), (536, 37628345), (670, 30102676), (920, 21922601), (1340, 15051338), (1541, 13088120), (2680, 7525669), (3082, 6544060), (6164, 3272030), (7705, 2617624), (12328, 1636015), (15410, 1308812), (30820, 654406), (61640, 327203)]