200080400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:493

約数の個数: 120

約数和(自身を含む): 523898760

約数和(自身を除く): 323818360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 109, 130, 200, 208, 218, 260, 325, 353, 400, 436, 520, 545, 650, 706, 872, 1040, 1090, 1300, 1412, 1417, 1744, 1765, 2180, 2600, 2725, 2824, 2834, 3530, 4360, 4589, 5200, 5450, 5648, 5668, 7060, 7085, 8720, 8825, 9178, 10900, 11336, 14120, 14170, 17650, 18356, 21800, 22672, 22945, 28240, 28340, 35300, 35425, 36712, 38477, 43600, 45890, 56680, 70600, 70850, 73424, 76954, 91780, 113360, 114725, 141200, 141700, 153908, 183560, 192385, 229450, 283400, 307816, 367120, 384770, 458900, 500201, 566800, 615632, 769540, 917800, 961925, 1000402, 1539080, 1835600, 1923850, 2000804, 2501005, 3078160, 3847700, 4001608, 5002010, 7695400, 8003216, 10004020, 12505025, 15390800, 20008040, 25010050, 40016080, 50020100, 100040200, 200080400]

約数ペア:

[(1, 200080400), (2, 100040200), (4, 50020100), (5, 40016080), (8, 25010050), (10, 20008040), (13, 15390800), (16, 12505025), (20, 10004020), (25, 8003216), (26, 7695400), (40, 5002010), (50, 4001608), (52, 3847700), (65, 3078160), (80, 2501005), (100, 2000804), (104, 1923850), (109, 1835600), (130, 1539080), (200, 1000402), (208, 961925), (218, 917800), (260, 769540), (325, 615632), (353, 566800), (400, 500201), (436, 458900), (520, 384770), (545, 367120), (650, 307816), (706, 283400), (872, 229450), (1040, 192385), (1090, 183560), (1300, 153908), (1412, 141700), (1417, 141200), (1744, 114725), (1765, 113360), (2180, 91780), (2600, 76954), (2725, 73424), (2824, 70850), (2834, 70600), (3530, 56680), (4360, 45890), (4589, 43600), (5200, 38477), (5450, 36712), (5648, 35425), (5668, 35300), (7060, 28340), (7085, 28240), (8720, 22945), (8825, 22672), (9178, 21800), (10900, 18356), (11336, 17650), (14120, 14170)]