71780720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81569}}^1$

素因数の和:81593

約数の個数: 40

約数和(自身を含む): 182064240

約数和(自身を除く): 110283520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 81569, 163138, 326276, 407845, 652552, 815690, 897259, 1305104, 1631380, 1794518, 3262760, 3589036, 4486295, 6525520, 7178072, 8972590, 14356144, 17945180, 35890360, 71780720]

約数ペア:

[(1, 71780720), (2, 35890360), (4, 17945180), (5, 14356144), (8, 8972590), (10, 7178072), (11, 6525520), (16, 4486295), (20, 3589036), (22, 3262760), (40, 1794518), (44, 1631380), (55, 1305104), (80, 897259), (88, 815690), (110, 652552), (176, 407845), (220, 326276), (440, 163138), (880, 81569)]