4140680

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1697}}^1$

素因数の和:1769

約数の個数: 32

約数和(自身を含む): 9474840

約数和(自身を除く): 5334160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 1697, 2440, 3394, 6788, 8485, 13576, 16970, 33940, 67880, 103517, 207034, 414068, 517585, 828136, 1035170, 2070340, 4140680]

約数ペア:

[(1, 4140680), (2, 2070340), (4, 1035170), (5, 828136), (8, 517585), (10, 414068), (20, 207034), (40, 103517), (61, 67880), (122, 33940), (244, 16970), (305, 13576), (488, 8485), (610, 6788), (1220, 3394), (1697, 2440)]