128718945

素因数分解:

$3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{223}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 228114432

約数和(自身を除く): 99395487

約数列:

[1, 3, 5, 9, 15, 45, 101, 127, 223, 303, 381, 505, 635, 669, 909, 1115, 1143, 1515, 1905, 2007, 3345, 4545, 5715, 10035, 12827, 22523, 28321, 38481, 64135, 67569, 84963, 112615, 115443, 141605, 192405, 202707, 254889, 337845, 424815, 577215, 1013535, 1274445, 2860421, 8581263, 14302105, 25743789, 42906315, 128718945]

約数ペア:

[(1, 128718945), (3, 42906315), (5, 25743789), (9, 14302105), (15, 8581263), (45, 2860421), (101, 1274445), (127, 1013535), (223, 577215), (303, 424815), (381, 337845), (505, 254889), (635, 202707), (669, 192405), (909, 141605), (1115, 115443), (1143, 112615), (1515, 84963), (1905, 67569), (2007, 64135), (3345, 38481), (4545, 28321), (5715, 22523), (10035, 12827)]