251284225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{1889}}^1$

素因数の和:2229

約数の個数: 24

約数和(自身を含む): 331150680

約数和(自身を除く): 79866455

約数列:

[1, 5, 17, 25, 85, 313, 425, 1565, 1889, 5321, 7825, 9445, 26605, 32113, 47225, 133025, 160565, 591257, 802825, 2956285, 10051369, 14781425, 50256845, 251284225]

約数ペア:

[(1, 251284225), (5, 50256845), (17, 14781425), (25, 10051369), (85, 2956285), (313, 802825), (425, 591257), (1565, 160565), (1889, 133025), (5321, 47225), (7825, 32113), (9445, 26605)]