51437920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18911}}^1$

素因数の和:18943

約数の個数: 48

約数和(自身を含む): 128677248

約数和(自身を除く): 77239328

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 18911, 37822, 75644, 94555, 151288, 189110, 302576, 321487, 378220, 605152, 642974, 756440, 1285948, 1512880, 1607435, 2571896, 3025760, 3214870, 5143792, 6429740, 10287584, 12859480, 25718960, 51437920]

約数ペア:

[(1, 51437920), (2, 25718960), (4, 12859480), (5, 10287584), (8, 6429740), (10, 5143792), (16, 3214870), (17, 3025760), (20, 2571896), (32, 1607435), (34, 1512880), (40, 1285948), (68, 756440), (80, 642974), (85, 605152), (136, 378220), (160, 321487), (170, 302576), (272, 189110), (340, 151288), (544, 94555), (680, 75644), (1360, 37822), (2720, 18911)]