18975875

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:188

約数の個数: 32

約数和(自身を含む): 25159680

約数和(自身を除く): 6183805

約数列:

[1, 5, 25, 31, 59, 83, 125, 155, 295, 415, 775, 1475, 1829, 2075, 2573, 3875, 4897, 7375, 9145, 10375, 12865, 24485, 45725, 64325, 122425, 151807, 228625, 321625, 612125, 759035, 3795175, 18975875]

約数ペア:

[(1, 18975875), (5, 3795175), (25, 759035), (31, 612125), (59, 321625), (83, 228625), (125, 151807), (155, 122425), (295, 64325), (415, 45725), (775, 24485), (1475, 12865), (1829, 10375), (2075, 9145), (2573, 7375), (3875, 4897)]