22781720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{227}}^1$

素因数の和:444

約数の個数: 64

約数和(自身を含む): 55732320

約数和(自身を除く): 32950600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 193, 227, 260, 386, 454, 520, 772, 908, 965, 1135, 1544, 1816, 1930, 2270, 2509, 2951, 3860, 4540, 5018, 5902, 7720, 9080, 10036, 11804, 12545, 14755, 20072, 23608, 25090, 29510, 43811, 50180, 59020, 87622, 100360, 118040, 175244, 219055, 350488, 438110, 569543, 876220, 1139086, 1752440, 2278172, 2847715, 4556344, 5695430, 11390860, 22781720]

約数ペア:

[(1, 22781720), (2, 11390860), (4, 5695430), (5, 4556344), (8, 2847715), (10, 2278172), (13, 1752440), (20, 1139086), (26, 876220), (40, 569543), (52, 438110), (65, 350488), (104, 219055), (130, 175244), (193, 118040), (227, 100360), (260, 87622), (386, 59020), (454, 50180), (520, 43811), (772, 29510), (908, 25090), (965, 23608), (1135, 20072), (1544, 14755), (1816, 12545), (1930, 11804), (2270, 10036), (2509, 9080), (2951, 7720), (3860, 5902), (4540, 5018)]