77217820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{751}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 167142528

約数和(自身を除く): 89924708

約数列:

[1, 2, 4, 5, 10, 20, 53, 97, 106, 194, 212, 265, 388, 485, 530, 751, 970, 1060, 1502, 1940, 3004, 3755, 5141, 7510, 10282, 15020, 20564, 25705, 39803, 51410, 72847, 79606, 102820, 145694, 159212, 199015, 291388, 364235, 398030, 728470, 796060, 1456940, 3860891, 7721782, 15443564, 19304455, 38608910, 77217820]

約数ペア:

[(1, 77217820), (2, 38608910), (4, 19304455), (5, 15443564), (10, 7721782), (20, 3860891), (53, 1456940), (97, 796060), (106, 728470), (194, 398030), (212, 364235), (265, 291388), (388, 199015), (485, 159212), (530, 145694), (751, 102820), (970, 79606), (1060, 72847), (1502, 51410), (1940, 39803), (3004, 25705), (3755, 20564), (5141, 15020), (7510, 10282)]