31640420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1171}}^1$

素因数の和:1380

約数の個数: 48

約数和(自身を含む): 76395648

約数和(自身を除く): 44755228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 772, 965, 1171, 1351, 1930, 2342, 2702, 3860, 4684, 5404, 5855, 6755, 8197, 11710, 13510, 16394, 23420, 27020, 32788, 40985, 81970, 163940, 226003, 452006, 904012, 1130015, 1582021, 2260030, 3164042, 4520060, 6328084, 7910105, 15820210, 31640420]

約数ペア:

[(1, 31640420), (2, 15820210), (4, 7910105), (5, 6328084), (7, 4520060), (10, 3164042), (14, 2260030), (20, 1582021), (28, 1130015), (35, 904012), (70, 452006), (140, 226003), (193, 163940), (386, 81970), (772, 40985), (965, 32788), (1171, 27020), (1351, 23420), (1930, 16394), (2342, 13510), (2702, 11710), (3860, 8197), (4684, 6755), (5404, 5855)]