81553075

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{571}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 105328080

約数和(自身を除く): 23775005

約数列:

[1, 5, 25, 29, 145, 197, 571, 725, 985, 2855, 4925, 5713, 14275, 16559, 28565, 82795, 112487, 142825, 413975, 562435, 2812175, 3262123, 16310615, 81553075]

約数ペア:

[(1, 81553075), (5, 16310615), (25, 3262123), (29, 2812175), (145, 562435), (197, 413975), (571, 142825), (725, 112487), (985, 82795), (2855, 28565), (4925, 16559), (5713, 14275)]