201547520

素因数分解:

$2^8\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1559}}^1$

素因数の和:1681

約数の個数: 72

約数和(自身を含む): 487861920

約数和(自身を除く): 286314400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 256, 320, 404, 505, 640, 808, 1010, 1280, 1559, 1616, 2020, 3118, 3232, 4040, 6236, 6464, 7795, 8080, 12472, 12928, 15590, 16160, 24944, 25856, 31180, 32320, 49888, 62360, 64640, 99776, 124720, 129280, 157459, 199552, 249440, 314918, 399104, 498880, 629836, 787295, 997760, 1259672, 1574590, 1995520, 2519344, 3149180, 5038688, 6298360, 10077376, 12596720, 20154752, 25193440, 40309504, 50386880, 100773760, 201547520]

約数ペア:

[(1, 201547520), (2, 100773760), (4, 50386880), (5, 40309504), (8, 25193440), (10, 20154752), (16, 12596720), (20, 10077376), (32, 6298360), (40, 5038688), (64, 3149180), (80, 2519344), (101, 1995520), (128, 1574590), (160, 1259672), (202, 997760), (256, 787295), (320, 629836), (404, 498880), (505, 399104), (640, 314918), (808, 249440), (1010, 199552), (1280, 157459), (1559, 129280), (1616, 124720), (2020, 99776), (3118, 64640), (3232, 62360), (4040, 49888), (6236, 32320), (6464, 31180), (7795, 25856), (8080, 24944), (12472, 16160), (12928, 15590)]