18226440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:471

約数の個数: 96

約数和(自身を含む): 59768280

約数和(自身を除く): 41541840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 197, 257, 360, 394, 514, 591, 771, 788, 985, 1028, 1182, 1285, 1542, 1576, 1773, 1970, 2056, 2313, 2364, 2570, 2955, 3084, 3546, 3855, 3940, 4626, 4728, 5140, 5910, 6168, 7092, 7710, 7880, 8865, 9252, 10280, 11565, 11820, 14184, 15420, 17730, 18504, 23130, 23640, 30840, 35460, 46260, 50629, 70920, 92520, 101258, 151887, 202516, 253145, 303774, 405032, 455661, 506290, 607548, 759435, 911322, 1012580, 1215096, 1518870, 1822644, 2025160, 2278305, 3037740, 3645288, 4556610, 6075480, 9113220, 18226440]

約数ペア:

[(1, 18226440), (2, 9113220), (3, 6075480), (4, 4556610), (5, 3645288), (6, 3037740), (8, 2278305), (9, 2025160), (10, 1822644), (12, 1518870), (15, 1215096), (18, 1012580), (20, 911322), (24, 759435), (30, 607548), (36, 506290), (40, 455661), (45, 405032), (60, 303774), (72, 253145), (90, 202516), (120, 151887), (180, 101258), (197, 92520), (257, 70920), (360, 50629), (394, 46260), (514, 35460), (591, 30840), (771, 23640), (788, 23130), (985, 18504), (1028, 17730), (1182, 15420), (1285, 14184), (1542, 11820), (1576, 11565), (1773, 10280), (1970, 9252), (2056, 8865), (2313, 7880), (2364, 7710), (2570, 7092), (2955, 6168), (3084, 5910), (3546, 5140), (3855, 4728), (3940, 4626)]