4142720

素因数分解:

$2^7\times 5^1\times {\mathrm{6473}}^1$

素因数の和:6492

約数の個数: 32

約数和(自身を含む): 9905220

約数和(自身を除く): 5762500

約数列:

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

約数ペア:

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