20504600900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{479}}^1\times {\mathrm{61153}}^1$

素因数の和:61653

約数の個数: 72

約数和(自身を含む): 50958405120

約数和(自身を除く): 30453804220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 479, 700, 958, 1916, 2395, 3353, 4790, 6706, 9580, 11975, 13412, 16765, 23950, 33530, 47900, 61153, 67060, 83825, 122306, 167650, 244612, 305765, 335300, 428071, 611530, 856142, 1223060, 1528825, 1712284, 2140355, 3057650, 4280710, 6115300, 8561420, 10701775, 21403550, 29292287, 42807100, 58584574, 117169148, 146461435, 205046009, 292922870, 410092018, 585845740, 732307175, 820184036, 1025230045, 1464614350, 2050460090, 2929228700, 4100920180, 5126150225, 10252300450, 20504600900]

約数ペア:

[(1, 20504600900), (2, 10252300450), (4, 5126150225), (5, 4100920180), (7, 2929228700), (10, 2050460090), (14, 1464614350), (20, 1025230045), (25, 820184036), (28, 732307175), (35, 585845740), (50, 410092018), (70, 292922870), (100, 205046009), (140, 146461435), (175, 117169148), (350, 58584574), (479, 42807100), (700, 29292287), (958, 21403550), (1916, 10701775), (2395, 8561420), (3353, 6115300), (4790, 4280710), (6706, 3057650), (9580, 2140355), (11975, 1712284), (13412, 1528825), (16765, 1223060), (23950, 856142), (33530, 611530), (47900, 428071), (61153, 335300), (67060, 305765), (83825, 244612), (122306, 167650)]