18214420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{463}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 43964928

約数和(自身を除く): 25750508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 281, 463, 562, 926, 1124, 1405, 1852, 1967, 2315, 2810, 3241, 3934, 4630, 5620, 6482, 7868, 9260, 9835, 12964, 16205, 19670, 32410, 39340, 64820, 130103, 260206, 520412, 650515, 910721, 1301030, 1821442, 2602060, 3642884, 4553605, 9107210, 18214420]

約数ペア:

[(1, 18214420), (2, 9107210), (4, 4553605), (5, 3642884), (7, 2602060), (10, 1821442), (14, 1301030), (20, 910721), (28, 650515), (35, 520412), (70, 260206), (140, 130103), (281, 64820), (463, 39340), (562, 32410), (926, 19670), (1124, 16205), (1405, 12964), (1852, 9835), (1967, 9260), (2315, 7868), (2810, 6482), (3241, 5620), (3934, 4630)]