203419480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{719}}^1$

素因数の和:1384

約数の個数: 64

約数和(自身を含む): 500774400

約数和(自身を除く): 297354920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 643, 719, 1286, 1438, 2572, 2876, 3215, 3595, 5144, 5752, 6430, 7073, 7190, 7909, 12860, 14146, 14380, 15818, 25720, 28292, 28760, 31636, 35365, 39545, 56584, 63272, 70730, 79090, 141460, 158180, 282920, 316360, 462317, 924634, 1849268, 2311585, 3698536, 4623170, 5085487, 9246340, 10170974, 18492680, 20341948, 25427435, 40683896, 50854870, 101709740, 203419480]

約数ペア:

[(1, 203419480), (2, 101709740), (4, 50854870), (5, 40683896), (8, 25427435), (10, 20341948), (11, 18492680), (20, 10170974), (22, 9246340), (40, 5085487), (44, 4623170), (55, 3698536), (88, 2311585), (110, 1849268), (220, 924634), (440, 462317), (643, 316360), (719, 282920), (1286, 158180), (1438, 141460), (2572, 79090), (2876, 70730), (3215, 63272), (3595, 56584), (5144, 39545), (5752, 35365), (6430, 31636), (7073, 28760), (7190, 28292), (7909, 25720), (12860, 15818), (14146, 14380)]