390682015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{20071}}^1$

素因数の和:20322

約数の個数: 16

約数和(自身を含む): 498588480

約数和(自身を除く): 107906465

約数列:

[1, 5, 17, 85, 229, 1145, 3893, 19465, 20071, 100355, 341207, 1706035, 4596259, 22981295, 78136403, 390682015]

約数ペア:

[(1, 390682015), (5, 78136403), (17, 22981295), (85, 4596259), (229, 1706035), (1145, 341207), (3893, 100355), (19465, 20071)]