77873540

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 166994352

約数和(自身を除く): 89120812

約数列:

[1, 2, 4, 5, 10, 20, 97, 137, 194, 274, 293, 388, 485, 548, 586, 685, 970, 1172, 1370, 1465, 1940, 2740, 2930, 5860, 13289, 26578, 28421, 40141, 53156, 56842, 66445, 80282, 113684, 132890, 142105, 160564, 200705, 265780, 284210, 401410, 568420, 802820, 3893677, 7787354, 15574708, 19468385, 38936770, 77873540]

約数ペア:

[(1, 77873540), (2, 38936770), (4, 19468385), (5, 15574708), (10, 7787354), (20, 3893677), (97, 802820), (137, 568420), (194, 401410), (274, 284210), (293, 265780), (388, 200705), (485, 160564), (548, 142105), (586, 132890), (685, 113684), (970, 80282), (1172, 66445), (1370, 56842), (1465, 53156), (1940, 40141), (2740, 28421), (2930, 26578), (5860, 13289)]