2217880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^2$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 5767920

約数和(自身を除く): 3550040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1246, 1780, 2492, 3115, 3560, 4984, 6230, 7921, 12460, 15842, 24920, 31684, 39605, 55447, 63368, 79210, 110894, 158420, 221788, 277235, 316840, 443576, 554470, 1108940, 2217880]

約数ペア:

[(1, 2217880), (2, 1108940), (4, 554470), (5, 443576), (7, 316840), (8, 277235), (10, 221788), (14, 158420), (20, 110894), (28, 79210), (35, 63368), (40, 55447), (56, 39605), (70, 31684), (89, 24920), (140, 15842), (178, 12460), (280, 7921), (356, 6230), (445, 4984), (623, 3560), (712, 3115), (890, 2492), (1246, 1780)]