201438620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{324901}}^1$

素因数の和:324941

約数の個数: 24

約数和(自身を含む): 436668288

約数和(自身を除く): 235229668

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 324901, 649802, 1299604, 1624505, 3249010, 6498020, 10071931, 20143862, 40287724, 50359655, 100719310, 201438620]

約数ペア:

[(1, 201438620), (2, 100719310), (4, 50359655), (5, 40287724), (10, 20143862), (20, 10071931), (31, 6498020), (62, 3249010), (124, 1624505), (155, 1299604), (310, 649802), (620, 324901)]