129021875

素因数分解:

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

素因数の和:138

約数の個数: 48

約数和(自身を含む): 177176160

約数和(自身を除く): 48154285

約数列:

[1, 5, 19, 25, 41, 53, 95, 125, 205, 265, 475, 625, 779, 1007, 1025, 1325, 2173, 2375, 3125, 3895, 5035, 5125, 6625, 10865, 11875, 19475, 25175, 25625, 33125, 41287, 54325, 59375, 97375, 125875, 128125, 165625, 206435, 271625, 486875, 629375, 1032175, 1358125, 2434375, 3146875, 5160875, 6790625, 25804375, 129021875]

約数ペア:

[(1, 129021875), (5, 25804375), (19, 6790625), (25, 5160875), (41, 3146875), (53, 2434375), (95, 1358125), (125, 1032175), (205, 629375), (265, 486875), (475, 271625), (625, 206435), (779, 165625), (1007, 128125), (1025, 125875), (1325, 97375), (2173, 59375), (2375, 54325), (3125, 41287), (3895, 33125), (5035, 25625), (5125, 25175), (6625, 19475), (10865, 11875)]