18042080

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:292

約数の個数: 96

約数和(自身を含む): 49533120

約数和(自身を除く): 31491040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 89, 112, 140, 160, 178, 181, 224, 280, 356, 362, 445, 560, 623, 712, 724, 890, 905, 1120, 1246, 1267, 1424, 1448, 1780, 1810, 2492, 2534, 2848, 2896, 3115, 3560, 3620, 4984, 5068, 5792, 6230, 6335, 7120, 7240, 9968, 10136, 12460, 12670, 14240, 14480, 16109, 19936, 20272, 24920, 25340, 28960, 32218, 40544, 49840, 50680, 64436, 80545, 99680, 101360, 112763, 128872, 161090, 202720, 225526, 257744, 322180, 451052, 515488, 563815, 644360, 902104, 1127630, 1288720, 1804208, 2255260, 2577440, 3608416, 4510520, 9021040, 18042080]

約数ペア:

[(1, 18042080), (2, 9021040), (4, 4510520), (5, 3608416), (7, 2577440), (8, 2255260), (10, 1804208), (14, 1288720), (16, 1127630), (20, 902104), (28, 644360), (32, 563815), (35, 515488), (40, 451052), (56, 322180), (70, 257744), (80, 225526), (89, 202720), (112, 161090), (140, 128872), (160, 112763), (178, 101360), (181, 99680), (224, 80545), (280, 64436), (356, 50680), (362, 49840), (445, 40544), (560, 32218), (623, 28960), (712, 25340), (724, 24920), (890, 20272), (905, 19936), (1120, 16109), (1246, 14480), (1267, 14240), (1424, 12670), (1448, 12460), (1780, 10136), (1810, 9968), (2492, 7240), (2534, 7120), (2848, 6335), (2896, 6230), (3115, 5792), (3560, 5068), (3620, 4984)]