338656720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{463}}^1$

素因数の和:740

約数の個数: 80

約数和(自身を含む): 811948032

約数和(自身を除く): 473291312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 223, 328, 410, 446, 463, 656, 820, 892, 926, 1115, 1640, 1784, 1852, 2230, 2315, 3280, 3568, 3704, 4460, 4630, 7408, 8920, 9143, 9260, 17840, 18286, 18520, 18983, 36572, 37040, 37966, 45715, 73144, 75932, 91430, 94915, 103249, 146288, 151864, 182860, 189830, 206498, 303728, 365720, 379660, 412996, 516245, 731440, 759320, 825992, 1032490, 1518640, 1651984, 2064980, 4129960, 4233209, 8259920, 8466418, 16932836, 21166045, 33865672, 42332090, 67731344, 84664180, 169328360, 338656720]

約数ペア:

[(1, 338656720), (2, 169328360), (4, 84664180), (5, 67731344), (8, 42332090), (10, 33865672), (16, 21166045), (20, 16932836), (40, 8466418), (41, 8259920), (80, 4233209), (82, 4129960), (164, 2064980), (205, 1651984), (223, 1518640), (328, 1032490), (410, 825992), (446, 759320), (463, 731440), (656, 516245), (820, 412996), (892, 379660), (926, 365720), (1115, 303728), (1640, 206498), (1784, 189830), (1852, 182860), (2230, 151864), (2315, 146288), (3280, 103249), (3568, 94915), (3704, 91430), (4460, 75932), (4630, 73144), (7408, 45715), (8920, 37966), (9143, 37040), (9260, 36572), (17840, 18983), (18286, 18520)]