215304530

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{1531}}^1$

素因数の和:1600

約数の個数: 64

約数和(自身を含む): 463276800

約数和(自身を除く): 247972270

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 49, 70, 82, 98, 205, 245, 287, 343, 410, 490, 574, 686, 1435, 1531, 1715, 2009, 2870, 3062, 3430, 4018, 7655, 10045, 10717, 14063, 15310, 20090, 21434, 28126, 53585, 62771, 70315, 75019, 107170, 125542, 140630, 150038, 313855, 375095, 439397, 525133, 627710, 750190, 878794, 1050266, 2196985, 2625665, 3075779, 4393970, 5251330, 6151558, 15378895, 21530453, 30757790, 43060906, 107652265, 215304530]

約数ペア:

[(1, 215304530), (2, 107652265), (5, 43060906), (7, 30757790), (10, 21530453), (14, 15378895), (35, 6151558), (41, 5251330), (49, 4393970), (70, 3075779), (82, 2625665), (98, 2196985), (205, 1050266), (245, 878794), (287, 750190), (343, 627710), (410, 525133), (490, 439397), (574, 375095), (686, 313855), (1435, 150038), (1531, 140630), (1715, 125542), (2009, 107170), (2870, 75019), (3062, 70315), (3430, 62771), (4018, 53585), (7655, 28126), (10045, 21434), (10717, 20090), (14063, 15310)]