2604280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 6842880

約数和(自身を除く): 4238600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 131, 140, 142, 262, 280, 284, 355, 497, 524, 568, 655, 710, 917, 994, 1048, 1310, 1420, 1834, 1988, 2485, 2620, 2840, 3668, 3976, 4585, 4970, 5240, 7336, 9170, 9301, 9940, 18340, 18602, 19880, 36680, 37204, 46505, 65107, 74408, 93010, 130214, 186020, 260428, 325535, 372040, 520856, 651070, 1302140, 2604280]

約数ペア:

[(1, 2604280), (2, 1302140), (4, 651070), (5, 520856), (7, 372040), (8, 325535), (10, 260428), (14, 186020), (20, 130214), (28, 93010), (35, 74408), (40, 65107), (56, 46505), (70, 37204), (71, 36680), (131, 19880), (140, 18602), (142, 18340), (262, 9940), (280, 9301), (284, 9170), (355, 7336), (497, 5240), (524, 4970), (568, 4585), (655, 3976), (710, 3668), (917, 2840), (994, 2620), (1048, 2485), (1310, 1988), (1420, 1834)]