66554240

素因数分解:

$2^7\times 5^1\times {\mathrm{103991}}^1$

素因数の和:104010

約数の個数: 32

約数和(自身を含む): 159107760

約数和(自身を除く): 92553520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 103991, 207982, 415964, 519955, 831928, 1039910, 1663856, 2079820, 3327712, 4159640, 6655424, 8319280, 13310848, 16638560, 33277120, 66554240]

約数ペア:

[(1, 66554240), (2, 33277120), (4, 16638560), (5, 13310848), (8, 8319280), (10, 6655424), (16, 4159640), (20, 3327712), (32, 2079820), (40, 1663856), (64, 1039910), (80, 831928), (128, 519955), (160, 415964), (320, 207982), (640, 103991)]