129621320

素因数分解:

$2^3\times 5^1\times {\mathrm{719}}^1\times {\mathrm{4507}}^1$

素因数の和:5237

約数の個数: 32

約数和(自身を含む): 292118400

約数和(自身を除く): 162497080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 719, 1438, 2876, 3595, 4507, 5752, 7190, 9014, 14380, 18028, 22535, 28760, 36056, 45070, 90140, 180280, 3240533, 6481066, 12962132, 16202665, 25924264, 32405330, 64810660, 129621320]

約数ペア:

[(1, 129621320), (2, 64810660), (4, 32405330), (5, 25924264), (8, 16202665), (10, 12962132), (20, 6481066), (40, 3240533), (719, 180280), (1438, 90140), (2876, 45070), (3595, 36056), (4507, 28760), (5752, 22535), (7190, 18028), (9014, 14380)]