90640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:127

約数の個数: 40

約数和(自身を含む): 232128

約数和(自身を除く): 141488

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 103, 110, 176, 206, 220, 412, 440, 515, 824, 880, 1030, 1133, 1648, 2060, 2266, 4120, 4532, 5665, 8240, 9064, 11330, 18128, 22660, 45320, 90640]

約数ペア:

[(1, 90640), (2, 45320), (4, 22660), (5, 18128), (8, 11330), (10, 9064), (11, 8240), (16, 5665), (20, 4532), (22, 4120), (40, 2266), (44, 2060), (55, 1648), (80, 1133), (88, 1030), (103, 880), (110, 824), (176, 515), (206, 440), (220, 412)]