2129451875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{6911}}^1$

素因数の和:6977

約数の個数: 40

約数和(自身を含む): 2915066880

約数和(自身を除く): 785615005

約数列:

[1, 5, 17, 25, 29, 85, 125, 145, 425, 493, 625, 725, 2125, 2465, 3625, 6911, 10625, 12325, 18125, 34555, 61625, 117487, 172775, 200419, 308125, 587435, 863875, 1002095, 2937175, 3407123, 4319375, 5010475, 14685875, 17035615, 25052375, 73429375, 85178075, 125261875, 425890375, 2129451875]

約数ペア:

[(1, 2129451875), (5, 425890375), (17, 125261875), (25, 85178075), (29, 73429375), (85, 25052375), (125, 17035615), (145, 14685875), (425, 5010475), (493, 4319375), (625, 3407123), (725, 2937175), (2125, 1002095), (2465, 863875), (3625, 587435), (6911, 308125), (10625, 200419), (12325, 172775), (18125, 117487), (34555, 61625)]