31997425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 12999695

約数列:

[1, 5, 19, 25, 31, 41, 53, 95, 155, 205, 265, 475, 589, 775, 779, 1007, 1025, 1271, 1325, 1643, 2173, 2945, 3895, 5035, 6355, 8215, 10865, 14725, 19475, 24149, 25175, 31217, 31775, 41075, 41287, 54325, 67363, 120745, 156085, 206435, 336815, 603725, 780425, 1032175, 1279897, 1684075, 6399485, 31997425]

約数ペア:

[(1, 31997425), (5, 6399485), (19, 1684075), (25, 1279897), (31, 1032175), (41, 780425), (53, 603725), (95, 336815), (155, 206435), (205, 156085), (265, 120745), (475, 67363), (589, 54325), (775, 41287), (779, 41075), (1007, 31775), (1025, 31217), (1271, 25175), (1325, 24149), (1643, 19475), (2173, 14725), (2945, 10865), (3895, 8215), (5035, 6355)]