8285440

素因数分解:

$2^8\times 5^1\times {\mathrm{6473}}^1$

素因数の和:6494

約数の個数: 36

約数和(自身を含む): 19849284

約数和(自身を除く): 11563844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 6473, 12946, 25892, 32365, 51784, 64730, 103568, 129460, 207136, 258920, 414272, 517840, 828544, 1035680, 1657088, 2071360, 4142720, 8285440]

約数ペア:

[(1, 8285440), (2, 4142720), (4, 2071360), (5, 1657088), (8, 1035680), (10, 828544), (16, 517840), (20, 414272), (32, 258920), (40, 207136), (64, 129460), (80, 103568), (128, 64730), (160, 51784), (256, 32365), (320, 25892), (640, 12946), (1280, 6473)]