1302140

素因数分解:

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

素因数の和:218

約数の個数: 48

約数和(自身を含む): 3193344

約数和(自身を除く): 1891204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 131, 140, 142, 262, 284, 355, 497, 524, 655, 710, 917, 994, 1310, 1420, 1834, 1988, 2485, 2620, 3668, 4585, 4970, 9170, 9301, 9940, 18340, 18602, 37204, 46505, 65107, 93010, 130214, 186020, 260428, 325535, 651070, 1302140]

約数ペア:

[(1, 1302140), (2, 651070), (4, 325535), (5, 260428), (7, 186020), (10, 130214), (14, 93010), (20, 65107), (28, 46505), (35, 37204), (70, 18602), (71, 18340), (131, 9940), (140, 9301), (142, 9170), (262, 4970), (284, 4585), (355, 3668), (497, 2620), (524, 2485), (655, 1988), (710, 1834), (917, 1420), (994, 1310)]