51372825

素因数分解:

$3^1\times 5^2\times 7^3\times {\mathrm{1997}}^1$

素因数の和:2031

約数の個数: 48

約数和(自身を含む): 99100800

約数和(自身を除く): 47727975

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 147, 175, 245, 343, 525, 735, 1029, 1225, 1715, 1997, 3675, 5145, 5991, 8575, 9985, 13979, 25725, 29955, 41937, 49925, 69895, 97853, 149775, 209685, 293559, 349475, 489265, 684971, 1048425, 1467795, 2054913, 2446325, 3424855, 7338975, 10274565, 17124275, 51372825]

約数ペア:

[(1, 51372825), (3, 17124275), (5, 10274565), (7, 7338975), (15, 3424855), (21, 2446325), (25, 2054913), (35, 1467795), (49, 1048425), (75, 684971), (105, 489265), (147, 349475), (175, 293559), (245, 209685), (343, 149775), (525, 97853), (735, 69895), (1029, 49925), (1225, 41937), (1715, 29955), (1997, 25725), (3675, 13979), (5145, 9985), (5991, 8575)]