420770680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^2\times {\mathrm{257}}^1$

素因数の和:401

約数の個数: 96

約数和(自身を含む): 1054095120

約数和(自身を除く): 633324440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 257, 305, 440, 488, 514, 610, 671, 1028, 1220, 1285, 1342, 2056, 2440, 2570, 2684, 2827, 3355, 3721, 5140, 5368, 5654, 6710, 7442, 10280, 11308, 13420, 14135, 14884, 15677, 18605, 22616, 26840, 28270, 29768, 31354, 37210, 40931, 56540, 62708, 74420, 78385, 81862, 113080, 125416, 148840, 156770, 163724, 172447, 204655, 313540, 327448, 344894, 409310, 627080, 689788, 818620, 862235, 956297, 1379576, 1637240, 1724470, 1912594, 3448940, 3825188, 4781485, 6897880, 7650376, 9562970, 10519267, 19125940, 21038534, 38251880, 42077068, 52596335, 84154136, 105192670, 210385340, 420770680]

約数ペア:

[(1, 420770680), (2, 210385340), (4, 105192670), (5, 84154136), (8, 52596335), (10, 42077068), (11, 38251880), (20, 21038534), (22, 19125940), (40, 10519267), (44, 9562970), (55, 7650376), (61, 6897880), (88, 4781485), (110, 3825188), (122, 3448940), (220, 1912594), (244, 1724470), (257, 1637240), (305, 1379576), (440, 956297), (488, 862235), (514, 818620), (610, 689788), (671, 627080), (1028, 409310), (1220, 344894), (1285, 327448), (1342, 313540), (2056, 204655), (2440, 172447), (2570, 163724), (2684, 156770), (2827, 148840), (3355, 125416), (3721, 113080), (5140, 81862), (5368, 78385), (5654, 74420), (6710, 62708), (7442, 56540), (10280, 40931), (11308, 37210), (13420, 31354), (14135, 29768), (14884, 28270), (15677, 26840), (18605, 22616)]