81450820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16097}}^1$

素因数の和:16140

約数の個数: 48

約数和(自身を含む): 194721408

約数和(自身を除く): 113270588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 5060, 16097, 32194, 64388, 80485, 160970, 177067, 321940, 354134, 370231, 708268, 740462, 885335, 1480924, 1770670, 1851155, 3541340, 3702310, 4072541, 7404620, 8145082, 16290164, 20362705, 40725410, 81450820]

約数ペア:

[(1, 81450820), (2, 40725410), (4, 20362705), (5, 16290164), (10, 8145082), (11, 7404620), (20, 4072541), (22, 3702310), (23, 3541340), (44, 1851155), (46, 1770670), (55, 1480924), (92, 885335), (110, 740462), (115, 708268), (220, 370231), (230, 354134), (253, 321940), (460, 177067), (506, 160970), (1012, 80485), (1265, 64388), (2530, 32194), (5060, 16097)]