68708980

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 147583296

約数和(自身を除く): 78874316

約数列:

[1, 2, 4, 5, 10, 20, 97, 107, 194, 214, 331, 388, 428, 485, 535, 662, 970, 1070, 1324, 1655, 1940, 2140, 3310, 6620, 10379, 20758, 32107, 35417, 41516, 51895, 64214, 70834, 103790, 128428, 141668, 160535, 177085, 207580, 321070, 354170, 642140, 708340, 3435449, 6870898, 13741796, 17177245, 34354490, 68708980]

約数ペア:

[(1, 68708980), (2, 34354490), (4, 17177245), (5, 13741796), (10, 6870898), (20, 3435449), (97, 708340), (107, 642140), (194, 354170), (214, 321070), (331, 207580), (388, 177085), (428, 160535), (485, 141668), (535, 128428), (662, 103790), (970, 70834), (1070, 64214), (1324, 51895), (1655, 41516), (1940, 35417), (2140, 32107), (3310, 20758), (6620, 10379)]