25491705

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1997}}^1$

素因数の和:2065

約数の個数: 32

約数和(自身を含む): 43732224

約数和(自身を除く): 18240519

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 1997, 2553, 4255, 5991, 9985, 12765, 29955, 45931, 73889, 137793, 221667, 229655, 369445, 688965, 1108335, 1699447, 5098341, 8497235, 25491705]

約数ペア:

[(1, 25491705), (3, 8497235), (5, 5098341), (15, 1699447), (23, 1108335), (37, 688965), (69, 369445), (111, 229655), (115, 221667), (185, 137793), (345, 73889), (555, 45931), (851, 29955), (1997, 12765), (2553, 9985), (4255, 5991)]