78420475

素因数分解:

$5^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{5399}}^1$

素因数の和:5499

約数の個数: 24

約数和(自身を含む): 112492800

約数和(自身を除く): 34072325

約数列:

[1, 5, 7, 25, 35, 83, 175, 415, 581, 2075, 2905, 5399, 14525, 26995, 37793, 134975, 188965, 448117, 944825, 2240585, 3136819, 11202925, 15684095, 78420475]

約数ペア:

[(1, 78420475), (5, 15684095), (7, 11202925), (25, 3136819), (35, 2240585), (83, 944825), (175, 448117), (415, 188965), (581, 134975), (2075, 37793), (2905, 26995), (5399, 14525)]