1283380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 3144960

約数和(自身を除く): 1861580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 103, 140, 178, 206, 356, 412, 445, 515, 623, 721, 890, 1030, 1246, 1442, 1780, 2060, 2492, 2884, 3115, 3605, 6230, 7210, 9167, 12460, 14420, 18334, 36668, 45835, 64169, 91670, 128338, 183340, 256676, 320845, 641690, 1283380]

約数ペア:

[(1, 1283380), (2, 641690), (4, 320845), (5, 256676), (7, 183340), (10, 128338), (14, 91670), (20, 64169), (28, 45835), (35, 36668), (70, 18334), (89, 14420), (103, 12460), (140, 9167), (178, 7210), (206, 6230), (356, 3605), (412, 3115), (445, 2884), (515, 2492), (623, 2060), (721, 1780), (890, 1442), (1030, 1246)]