18139520

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4049}}^1$

素因数の和:4075

約数の個数: 64

約数和(自身を含む): 49572000

約数和(自身を除く): 31432480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4049, 4480, 8098, 16196, 20245, 28343, 32392, 40490, 56686, 64784, 80980, 113372, 129568, 141715, 161960, 226744, 259136, 283430, 323920, 453488, 518272, 566860, 647840, 906976, 1133720, 1295680, 1813952, 2267440, 2591360, 3627904, 4534880, 9069760, 18139520]

約数ペア:

[(1, 18139520), (2, 9069760), (4, 4534880), (5, 3627904), (7, 2591360), (8, 2267440), (10, 1813952), (14, 1295680), (16, 1133720), (20, 906976), (28, 647840), (32, 566860), (35, 518272), (40, 453488), (56, 323920), (64, 283430), (70, 259136), (80, 226744), (112, 161960), (128, 141715), (140, 129568), (160, 113372), (224, 80980), (280, 64784), (320, 56686), (448, 40490), (560, 32392), (640, 28343), (896, 20245), (1120, 16196), (2240, 8098), (4049, 4480)]