216329480

素因数分解:

$2^3\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{5297}}^1$

素因数の和:6329

約数の個数: 32

約数和(自身を含む): 487310040

約数和(自身を除く): 270980560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1021, 2042, 4084, 5105, 5297, 8168, 10210, 10594, 20420, 21188, 26485, 40840, 42376, 52970, 105940, 211880, 5408237, 10816474, 21632948, 27041185, 43265896, 54082370, 108164740, 216329480]

約数ペア:

[(1, 216329480), (2, 108164740), (4, 54082370), (5, 43265896), (8, 27041185), (10, 21632948), (20, 10816474), (40, 5408237), (1021, 211880), (2042, 105940), (4084, 52970), (5105, 42376), (5297, 40840), (8168, 26485), (10210, 21188), (10594, 20420)]