1661527040

素因数分解:

$2^{10}\times 5^1\times {\mathrm{324517}}^1$

素因数の和:324542

約数の個数: 44

約数和(自身を含む): 3985730076

約数和(自身を除く): 2324203036

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 324517, 649034, 1298068, 1622585, 2596136, 3245170, 5192272, 6490340, 10384544, 12980680, 20769088, 25961360, 41538176, 51922720, 83076352, 103845440, 166152704, 207690880, 332305408, 415381760, 830763520, 1661527040]

約数ペア:

[(1, 1661527040), (2, 830763520), (4, 415381760), (5, 332305408), (8, 207690880), (10, 166152704), (16, 103845440), (20, 83076352), (32, 51922720), (40, 41538176), (64, 25961360), (80, 20769088), (128, 12980680), (160, 10384544), (256, 6490340), (320, 5192272), (512, 3245170), (640, 2596136), (1024, 1622585), (1280, 1298068), (2560, 649034), (5120, 324517)]