8420375

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:140

約数の個数: 32

約数和(自身を含む): 11321856

約数和(自身を除く): 2901481

約数列:

[1, 5, 25, 31, 41, 53, 125, 155, 205, 265, 775, 1025, 1271, 1325, 1643, 2173, 3875, 5125, 6355, 6625, 8215, 10865, 31775, 41075, 54325, 67363, 158875, 205375, 271625, 336815, 1684075, 8420375]

約数ペア:

[(1, 8420375), (5, 1684075), (25, 336815), (31, 271625), (41, 205375), (53, 158875), (125, 67363), (155, 54325), (205, 41075), (265, 31775), (775, 10865), (1025, 8215), (1271, 6625), (1325, 6355), (1643, 5125), (2173, 3875)]