18135320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 47001600

約数和(自身を除く): 28866280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 239, 271, 280, 478, 542, 956, 1084, 1195, 1355, 1673, 1897, 1912, 2168, 2390, 2710, 3346, 3794, 4780, 5420, 6692, 7588, 8365, 9485, 9560, 10840, 13384, 15176, 16730, 18970, 33460, 37940, 64769, 66920, 75880, 129538, 259076, 323845, 453383, 518152, 647690, 906766, 1295380, 1813532, 2266915, 2590760, 3627064, 4533830, 9067660, 18135320]

約数ペア:

[(1, 18135320), (2, 9067660), (4, 4533830), (5, 3627064), (7, 2590760), (8, 2266915), (10, 1813532), (14, 1295380), (20, 906766), (28, 647690), (35, 518152), (40, 453383), (56, 323845), (70, 259076), (140, 129538), (239, 75880), (271, 66920), (280, 64769), (478, 37940), (542, 33460), (956, 18970), (1084, 16730), (1195, 15176), (1355, 13384), (1673, 10840), (1897, 9560), (1912, 9485), (2168, 8365), (2390, 7588), (2710, 6692), (3346, 5420), (3794, 4780)]