13130740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1321}}^1$

素因数の和:1408

約数の個数: 48

約数和(自身を含む): 31981824

約数和(自身を除く): 18851084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1321, 1420, 1988, 2485, 2642, 4970, 5284, 6605, 9247, 9940, 13210, 18494, 26420, 36988, 46235, 92470, 93791, 184940, 187582, 375164, 468955, 656537, 937910, 1313074, 1875820, 2626148, 3282685, 6565370, 13130740]

約数ペア:

[(1, 13130740), (2, 6565370), (4, 3282685), (5, 2626148), (7, 1875820), (10, 1313074), (14, 937910), (20, 656537), (28, 468955), (35, 375164), (70, 187582), (71, 184940), (140, 93791), (142, 92470), (284, 46235), (355, 36988), (497, 26420), (710, 18494), (994, 13210), (1321, 9940), (1420, 9247), (1988, 6605), (2485, 5284), (2642, 4970)]