129908920

素因数分解:

$2^3\times 5^1\times {\mathrm{719}}^1\times {\mathrm{4517}}^1$

素因数の和:5247

約数の個数: 32

約数和(自身を含む): 292766400

約数和(自身を除く): 162857480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 719, 1438, 2876, 3595, 4517, 5752, 7190, 9034, 14380, 18068, 22585, 28760, 36136, 45170, 90340, 180680, 3247723, 6495446, 12990892, 16238615, 25981784, 32477230, 64954460, 129908920]

約数ペア:

[(1, 129908920), (2, 64954460), (4, 32477230), (5, 25981784), (8, 16238615), (10, 12990892), (20, 6495446), (40, 3247723), (719, 180680), (1438, 90340), (2876, 45170), (3595, 36136), (4517, 28760), (5752, 22585), (7190, 18068), (9034, 14380)]