20040125

素因数分解:

$5^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{619}}^1$

素因数の和:678

約数の個数: 32

約数和(自身を含む): 29402880

約数和(自身を除く): 9362755

約数列:

[1, 5, 7, 25, 35, 37, 125, 175, 185, 259, 619, 875, 925, 1295, 3095, 4333, 4625, 6475, 15475, 21665, 22903, 32375, 77375, 108325, 114515, 160321, 541625, 572575, 801605, 2862875, 4008025, 20040125]

約数ペア:

[(1, 20040125), (5, 4008025), (7, 2862875), (25, 801605), (35, 572575), (37, 541625), (125, 160321), (175, 114515), (185, 108325), (259, 77375), (619, 32375), (875, 22903), (925, 21665), (1295, 15475), (3095, 6475), (4333, 4625)]