18262720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:318

約数の個数: 112

約数和(自身を含む): 51499008

約数和(自身を除く): 33236288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 263, 280, 310, 320, 434, 448, 496, 526, 560, 620, 868, 992, 1052, 1085, 1120, 1240, 1315, 1736, 1841, 1984, 2104, 2170, 2240, 2480, 2630, 3472, 3682, 4208, 4340, 4960, 5260, 6944, 7364, 8153, 8416, 8680, 9205, 9920, 10520, 13888, 14728, 16306, 16832, 17360, 18410, 21040, 29456, 32612, 34720, 36820, 40765, 42080, 57071, 58912, 65224, 69440, 73640, 81530, 84160, 114142, 117824, 130448, 147280, 163060, 228284, 260896, 285355, 294560, 326120, 456568, 521792, 570710, 589120, 652240, 913136, 1141420, 1304480, 1826272, 2282840, 2608960, 3652544, 4565680, 9131360, 18262720]

約数ペア:

[(1, 18262720), (2, 9131360), (4, 4565680), (5, 3652544), (7, 2608960), (8, 2282840), (10, 1826272), (14, 1304480), (16, 1141420), (20, 913136), (28, 652240), (31, 589120), (32, 570710), (35, 521792), (40, 456568), (56, 326120), (62, 294560), (64, 285355), (70, 260896), (80, 228284), (112, 163060), (124, 147280), (140, 130448), (155, 117824), (160, 114142), (217, 84160), (224, 81530), (248, 73640), (263, 69440), (280, 65224), (310, 58912), (320, 57071), (434, 42080), (448, 40765), (496, 36820), (526, 34720), (560, 32612), (620, 29456), (868, 21040), (992, 18410), (1052, 17360), (1085, 16832), (1120, 16306), (1240, 14728), (1315, 13888), (1736, 10520), (1841, 9920), (1984, 9205), (2104, 8680), (2170, 8416), (2240, 8153), (2480, 7364), (2630, 6944), (3472, 5260), (3682, 4960), (4208, 4340)]