290911936

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20947}}^1$

素因数の和:20997

約数の個数: 56

約数和(自身を含む): 681061376

約数和(自身を除く): 390149440

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1736, 1984, 3472, 6944, 13888, 20947, 41894, 83788, 146629, 167576, 293258, 335152, 586516, 649357, 670304, 1173032, 1298714, 1340608, 2346064, 2597428, 4545499, 4692128, 5194856, 9090998, 9384256, 10389712, 18181996, 20779424, 36363992, 41558848, 72727984, 145455968, 290911936]

約数ペア:

[(1, 290911936), (2, 145455968), (4, 72727984), (7, 41558848), (8, 36363992), (14, 20779424), (16, 18181996), (28, 10389712), (31, 9384256), (32, 9090998), (56, 5194856), (62, 4692128), (64, 4545499), (112, 2597428), (124, 2346064), (217, 1340608), (224, 1298714), (248, 1173032), (434, 670304), (448, 649357), (496, 586516), (868, 335152), (992, 293258), (1736, 167576), (1984, 146629), (3472, 83788), (6944, 41894), (13888, 20947)]