388380015

素因数分解:

$3^4\times 5^1\times {\mathrm{958963}}^1$

素因数の和:958980

約数の個数: 20

約数和(自身を含む): 696207864

約数和(自身を除く): 307827849

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 958963, 2876889, 4794815, 8630667, 14384445, 25892001, 43153335, 77676003, 129460005, 388380015]

約数ペア:

[(1, 388380015), (3, 129460005), (5, 77676003), (9, 43153335), (15, 25892001), (27, 14384445), (45, 8630667), (81, 4794815), (135, 2876889), (405, 958963)]