81366225

素因数分解:

$3^1\times 5^2\times {\mathrm{173}}^1\times {\mathrm{6271}}^1$

素因数の和:6457

約数の個数: 24

約数和(自身を含む): 135324672

約数和(自身を除く): 53958447

約数列:

[1, 3, 5, 15, 25, 75, 173, 519, 865, 2595, 4325, 6271, 12975, 18813, 31355, 94065, 156775, 470325, 1084883, 3254649, 5424415, 16273245, 27122075, 81366225]

約数ペア:

[(1, 81366225), (3, 27122075), (5, 16273245), (15, 5424415), (25, 3254649), (75, 1084883), (173, 470325), (519, 156775), (865, 94065), (2595, 31355), (4325, 18813), (6271, 12975)]