208216640

素因数分解:

$2^6\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4967}}^1$

素因数の和:5115

約数の個数: 56

約数和(自身を含む): 499701312

約数和(自身を除く): 291484672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 131, 160, 262, 320, 524, 655, 1048, 1310, 2096, 2620, 4192, 4967, 5240, 8384, 9934, 10480, 19868, 20960, 24835, 39736, 41920, 49670, 79472, 99340, 158944, 198680, 317888, 397360, 650677, 794720, 1301354, 1589440, 2602708, 3253385, 5205416, 6506770, 10410832, 13013540, 20821664, 26027080, 41643328, 52054160, 104108320, 208216640]

約数ペア:

[(1, 208216640), (2, 104108320), (4, 52054160), (5, 41643328), (8, 26027080), (10, 20821664), (16, 13013540), (20, 10410832), (32, 6506770), (40, 5205416), (64, 3253385), (80, 2602708), (131, 1589440), (160, 1301354), (262, 794720), (320, 650677), (524, 397360), (655, 317888), (1048, 198680), (1310, 158944), (2096, 99340), (2620, 79472), (4192, 49670), (4967, 41920), (5240, 39736), (8384, 24835), (9934, 20960), (10480, 19868)]