15926920

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{907}}^1$

素因数の和:1357

約数の個数: 32

約数和(自身を含む): 35956800

約数和(自身を除く): 20029880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 907, 1756, 1814, 2195, 3512, 3628, 4390, 4535, 7256, 8780, 9070, 17560, 18140, 36280, 398173, 796346, 1592692, 1990865, 3185384, 3981730, 7963460, 15926920]

約数ペア:

[(1, 15926920), (2, 7963460), (4, 3981730), (5, 3185384), (8, 1990865), (10, 1592692), (20, 796346), (40, 398173), (439, 36280), (878, 18140), (907, 17560), (1756, 9070), (1814, 8780), (2195, 7256), (3512, 4535), (3628, 4390)]