71337640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{823}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 176204160

約数和(自身を除く): 104866520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 197, 220, 394, 440, 788, 823, 985, 1576, 1646, 1970, 2167, 3292, 3940, 4115, 4334, 6584, 7880, 8230, 8668, 9053, 10835, 16460, 17336, 18106, 21670, 32920, 36212, 43340, 45265, 72424, 86680, 90530, 162131, 181060, 324262, 362120, 648524, 810655, 1297048, 1621310, 1783441, 3242620, 3566882, 6485240, 7133764, 8917205, 14267528, 17834410, 35668820, 71337640]

約数ペア:

[(1, 71337640), (2, 35668820), (4, 17834410), (5, 14267528), (8, 8917205), (10, 7133764), (11, 6485240), (20, 3566882), (22, 3242620), (40, 1783441), (44, 1621310), (55, 1297048), (88, 810655), (110, 648524), (197, 362120), (220, 324262), (394, 181060), (440, 162131), (788, 90530), (823, 86680), (985, 72424), (1576, 45265), (1646, 43340), (1970, 36212), (2167, 32920), (3292, 21670), (3940, 18106), (4115, 17336), (4334, 16460), (6584, 10835), (7880, 9053), (8230, 8668)]