20206720

素因数分解:

$2^7\times 5^1\times {\mathrm{31573}}^1$

素因数の和:31592

約数の個数: 32

約数和(自身を含む): 48308220

約数和(自身を除く): 28101500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31573, 63146, 126292, 157865, 252584, 315730, 505168, 631460, 1010336, 1262920, 2020672, 2525840, 4041344, 5051680, 10103360, 20206720]

約数ペア:

[(1, 20206720), (2, 10103360), (4, 5051680), (5, 4041344), (8, 2525840), (10, 2020672), (16, 1262920), (20, 1010336), (32, 631460), (40, 505168), (64, 315730), (80, 252584), (128, 157865), (160, 126292), (320, 63146), (640, 31573)]