199972675

素因数分解:

$5^2\times 7^2\times {\mathrm{163243}}^1$

素因数の和:163267

約数の個数: 18

約数和(自身を含む): 288452148

約数和(自身を除く): 88479473

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 163243, 816215, 1142701, 4081075, 5713505, 7998907, 28567525, 39994535, 199972675]

約数ペア:

[(1, 199972675), (5, 39994535), (7, 28567525), (25, 7998907), (35, 5713505), (49, 4081075), (175, 1142701), (245, 816215), (1225, 163243)]