65920640

素因数分解:

$2^7\times 5^1\times {\mathrm{103001}}^1$

素因数の和:103020

約数の個数: 32

約数和(自身を含む): 157593060

約数和(自身を除く): 91672420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 103001, 206002, 412004, 515005, 824008, 1030010, 1648016, 2060020, 3296032, 4120040, 6592064, 8240080, 13184128, 16480160, 32960320, 65920640]

約数ペア:

[(1, 65920640), (2, 32960320), (4, 16480160), (5, 13184128), (8, 8240080), (10, 6592064), (16, 4120040), (20, 3296032), (32, 2060020), (40, 1648016), (64, 1030010), (80, 824008), (128, 515005), (160, 412004), (320, 206002), (640, 103001)]