71529320

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4597}}^1$

素因数の和:4997

約数の個数: 32

約数和(自身を含む): 161389800

約数和(自身を除く): 89860480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 4597, 7780, 9194, 15560, 18388, 22985, 36776, 45970, 91940, 183880, 1788233, 3576466, 7152932, 8941165, 14305864, 17882330, 35764660, 71529320]

約数ペア:

[(1, 71529320), (2, 35764660), (4, 17882330), (5, 14305864), (8, 8941165), (10, 7152932), (20, 3576466), (40, 1788233), (389, 183880), (778, 91940), (1556, 45970), (1945, 36776), (3112, 22985), (3890, 18388), (4597, 15560), (7780, 9194)]