289314280

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{571}}^1$

素因数の和:874

約数の個数: 64

約数和(自身を含む): 667180800

約数和(自身を除く): 377866520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 239, 265, 424, 478, 530, 571, 956, 1060, 1142, 1195, 1912, 2120, 2284, 2390, 2855, 4568, 4780, 5710, 9560, 11420, 12667, 22840, 25334, 30263, 50668, 60526, 63335, 101336, 121052, 126670, 136469, 151315, 242104, 253340, 272938, 302630, 506680, 545876, 605260, 682345, 1091752, 1210520, 1364690, 2729380, 5458760, 7232857, 14465714, 28931428, 36164285, 57862856, 72328570, 144657140, 289314280]

約数ペア:

[(1, 289314280), (2, 144657140), (4, 72328570), (5, 57862856), (8, 36164285), (10, 28931428), (20, 14465714), (40, 7232857), (53, 5458760), (106, 2729380), (212, 1364690), (239, 1210520), (265, 1091752), (424, 682345), (478, 605260), (530, 545876), (571, 506680), (956, 302630), (1060, 272938), (1142, 253340), (1195, 242104), (1912, 151315), (2120, 136469), (2284, 126670), (2390, 121052), (2855, 101336), (4568, 63335), (4780, 60526), (5710, 50668), (9560, 30263), (11420, 25334), (12667, 22840)]