766771280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{4423}}^1$

素因数の和:4644

約数の個数: 80

約数和(自身を含む): 1955124864

約数和(自身を除く): 1188353584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 197, 220, 394, 440, 788, 880, 985, 1576, 1970, 2167, 3152, 3940, 4334, 4423, 7880, 8668, 8846, 10835, 15760, 17336, 17692, 21670, 22115, 34672, 35384, 43340, 44230, 48653, 70768, 86680, 88460, 97306, 173360, 176920, 194612, 243265, 353840, 389224, 486530, 778448, 871331, 973060, 1742662, 1946120, 3485324, 3892240, 4356655, 6970648, 8713310, 9584641, 13941296, 17426620, 19169282, 34853240, 38338564, 47923205, 69706480, 76677128, 95846410, 153354256, 191692820, 383385640, 766771280]

約数ペア:

[(1, 766771280), (2, 383385640), (4, 191692820), (5, 153354256), (8, 95846410), (10, 76677128), (11, 69706480), (16, 47923205), (20, 38338564), (22, 34853240), (40, 19169282), (44, 17426620), (55, 13941296), (80, 9584641), (88, 8713310), (110, 6970648), (176, 4356655), (197, 3892240), (220, 3485324), (394, 1946120), (440, 1742662), (788, 973060), (880, 871331), (985, 778448), (1576, 486530), (1970, 389224), (2167, 353840), (3152, 243265), (3940, 194612), (4334, 176920), (4423, 173360), (7880, 97306), (8668, 88460), (8846, 86680), (10835, 70768), (15760, 48653), (17336, 44230), (17692, 43340), (21670, 35384), (22115, 34672)]