18198875

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:176

約数の個数: 32

約数和(自身を含む): 24058944

約数和(自身を除く): 5860069

約数列:

[1, 5, 25, 41, 53, 67, 125, 205, 265, 335, 1025, 1325, 1675, 2173, 2747, 3551, 5125, 6625, 8375, 10865, 13735, 17755, 54325, 68675, 88775, 145591, 271625, 343375, 443875, 727955, 3639775, 18198875]

約数ペア:

[(1, 18198875), (5, 3639775), (25, 727955), (41, 443875), (53, 343375), (67, 271625), (125, 145591), (205, 88775), (265, 68675), (335, 54325), (1025, 17755), (1325, 13735), (1675, 10865), (2173, 8375), (2747, 6625), (3551, 5125)]