18367760

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{523}}^1$

素因数の和:975

約数の個数: 40

約数和(自身を含む): 42884160

約数和(自身を除く): 24516400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 523, 878, 1046, 1756, 2092, 2195, 2615, 3512, 4184, 4390, 5230, 7024, 8368, 8780, 10460, 17560, 20920, 35120, 41840, 229597, 459194, 918388, 1147985, 1836776, 2295970, 3673552, 4591940, 9183880, 18367760]

約数ペア:

[(1, 18367760), (2, 9183880), (4, 4591940), (5, 3673552), (8, 2295970), (10, 1836776), (16, 1147985), (20, 918388), (40, 459194), (80, 229597), (439, 41840), (523, 35120), (878, 20920), (1046, 17560), (1756, 10460), (2092, 8780), (2195, 8368), (2615, 7024), (3512, 5230), (4184, 4390)]