406838960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{719}}^1$

素因数の和:1386

約数の個数: 80

約数和(自身を含む): 1034933760

約数和(自身を除く): 628094800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 643, 719, 880, 1286, 1438, 2572, 2876, 3215, 3595, 5144, 5752, 6430, 7073, 7190, 7909, 10288, 11504, 12860, 14146, 14380, 15818, 25720, 28292, 28760, 31636, 35365, 39545, 51440, 56584, 57520, 63272, 70730, 79090, 113168, 126544, 141460, 158180, 282920, 316360, 462317, 565840, 632720, 924634, 1849268, 2311585, 3698536, 4623170, 5085487, 7397072, 9246340, 10170974, 18492680, 20341948, 25427435, 36985360, 40683896, 50854870, 81367792, 101709740, 203419480, 406838960]

約数ペア:

[(1, 406838960), (2, 203419480), (4, 101709740), (5, 81367792), (8, 50854870), (10, 40683896), (11, 36985360), (16, 25427435), (20, 20341948), (22, 18492680), (40, 10170974), (44, 9246340), (55, 7397072), (80, 5085487), (88, 4623170), (110, 3698536), (176, 2311585), (220, 1849268), (440, 924634), (643, 632720), (719, 565840), (880, 462317), (1286, 316360), (1438, 282920), (2572, 158180), (2876, 141460), (3215, 126544), (3595, 113168), (5144, 79090), (5752, 70730), (6430, 63272), (7073, 57520), (7190, 56584), (7909, 51440), (10288, 39545), (11504, 35365), (12860, 31636), (14146, 28760), (14380, 28292), (15818, 25720)]