87374420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1093}}^1$

素因数の和:1680

約数の個数: 48

約数和(自身を含む): 210258048

約数和(自身を除く): 122883628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 571, 1093, 1142, 2186, 2284, 2855, 3997, 4372, 5465, 5710, 7651, 7994, 10930, 11420, 15302, 15988, 19985, 21860, 30604, 38255, 39970, 76510, 79940, 153020, 624103, 1248206, 2496412, 3120515, 4368721, 6241030, 8737442, 12482060, 17474884, 21843605, 43687210, 87374420]

約数ペア:

[(1, 87374420), (2, 43687210), (4, 21843605), (5, 17474884), (7, 12482060), (10, 8737442), (14, 6241030), (20, 4368721), (28, 3120515), (35, 2496412), (70, 1248206), (140, 624103), (571, 153020), (1093, 79940), (1142, 76510), (2186, 39970), (2284, 38255), (2855, 30604), (3997, 21860), (4372, 19985), (5465, 15988), (5710, 15302), (7651, 11420), (7994, 10930)]