18216380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10009}}^1$

素因数の和:10038

約数の個数: 48

約数和(自身を含む): 47087040

約数和(自身を除く): 28870660

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10009, 20018, 40036, 50045, 70063, 100090, 130117, 140126, 200180, 260234, 280252, 350315, 520468, 650585, 700630, 910819, 1301170, 1401260, 1821638, 2602340, 3643276, 4554095, 9108190, 18216380]

約数ペア:

[(1, 18216380), (2, 9108190), (4, 4554095), (5, 3643276), (7, 2602340), (10, 1821638), (13, 1401260), (14, 1301170), (20, 910819), (26, 700630), (28, 650585), (35, 520468), (52, 350315), (65, 280252), (70, 260234), (91, 200180), (130, 140126), (140, 130117), (182, 100090), (260, 70063), (364, 50045), (455, 40036), (910, 20018), (1820, 10009)]