20126800

素因数分解:

$2^4\times 5^2\times {\mathrm{67}}^1\times {\mathrm{751}}^1$

素因数の和:836

約数の個数: 60

約数和(自身を含む): 49141696

約数和(自身を除く): 29014896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 67, 80, 100, 134, 200, 268, 335, 400, 536, 670, 751, 1072, 1340, 1502, 1675, 2680, 3004, 3350, 3755, 5360, 6008, 6700, 7510, 12016, 13400, 15020, 18775, 26800, 30040, 37550, 50317, 60080, 75100, 100634, 150200, 201268, 251585, 300400, 402536, 503170, 805072, 1006340, 1257925, 2012680, 2515850, 4025360, 5031700, 10063400, 20126800]

約数ペア:

[(1, 20126800), (2, 10063400), (4, 5031700), (5, 4025360), (8, 2515850), (10, 2012680), (16, 1257925), (20, 1006340), (25, 805072), (40, 503170), (50, 402536), (67, 300400), (80, 251585), (100, 201268), (134, 150200), (200, 100634), (268, 75100), (335, 60080), (400, 50317), (536, 37550), (670, 30040), (751, 26800), (1072, 18775), (1340, 15020), (1502, 13400), (1675, 12016), (2680, 7510), (3004, 6700), (3350, 6008), (3755, 5360)]