90007720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{204563}}^1$

素因数の和:204585

約数の個数: 32

約数和(自身を含む): 220929120

約数和(自身を除く): 130921400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 204563, 409126, 818252, 1022815, 1636504, 2045630, 2250193, 4091260, 4500386, 8182520, 9000772, 11250965, 18001544, 22501930, 45003860, 90007720]

約数ペア:

[(1, 90007720), (2, 45003860), (4, 22501930), (5, 18001544), (8, 11250965), (10, 9000772), (11, 8182520), (20, 4500386), (22, 4091260), (40, 2250193), (44, 2045630), (55, 1636504), (88, 1022815), (110, 818252), (220, 409126), (440, 204563)]