280185507

素因数分解:

$3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{337}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 490613760

約数和(自身を除く): 210428253

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 83, 159, 189, 249, 337, 371, 477, 581, 747, 1011, 1113, 1431, 1743, 2241, 2359, 3033, 3339, 4399, 5229, 7077, 9099, 10017, 13197, 15687, 17861, 21231, 27971, 30793, 39591, 53583, 63693, 83913, 92379, 118773, 125027, 160749, 195797, 251739, 277137, 375081, 482247, 587391, 755217, 831411, 1125243, 1482463, 1762173, 3375729, 4447389, 5286519, 10377241, 13342167, 31131723, 40026501, 93395169, 280185507]

約数ペア:

[(1, 280185507), (3, 93395169), (7, 40026501), (9, 31131723), (21, 13342167), (27, 10377241), (53, 5286519), (63, 4447389), (83, 3375729), (159, 1762173), (189, 1482463), (249, 1125243), (337, 831411), (371, 755217), (477, 587391), (581, 482247), (747, 375081), (1011, 277137), (1113, 251739), (1431, 195797), (1743, 160749), (2241, 125027), (2359, 118773), (3033, 92379), (3339, 83913), (4399, 63693), (5229, 53583), (7077, 39591), (9099, 30793), (10017, 27971), (13197, 21231), (15687, 17861)]