18157840

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{3847}}^1$

素因数の和:3919

約数の個数: 40

約数和(自身を含む): 42943680

約数和(自身を除く): 24785840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 3847, 4720, 7694, 15388, 19235, 30776, 38470, 61552, 76940, 153880, 226973, 307760, 453946, 907892, 1134865, 1815784, 2269730, 3631568, 4539460, 9078920, 18157840]

約数ペア:

[(1, 18157840), (2, 9078920), (4, 4539460), (5, 3631568), (8, 2269730), (10, 1815784), (16, 1134865), (20, 907892), (40, 453946), (59, 307760), (80, 226973), (118, 153880), (236, 76940), (295, 61552), (472, 38470), (590, 30776), (944, 19235), (1180, 15388), (2360, 7694), (3847, 4720)]