254665005

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{421}}^1\times {\mathrm{823}}^1$

素因数の和:1266

約数の個数: 48

約数和(自身を含む): 475691904

約数和(自身を除く): 221026899

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 421, 735, 823, 1263, 2105, 2469, 2947, 4115, 5761, 6315, 8841, 12345, 14735, 17283, 20629, 28805, 40327, 44205, 61887, 86415, 103145, 120981, 201635, 309435, 346483, 604905, 1039449, 1732415, 2425381, 5197245, 7276143, 12126905, 16977667, 36380715, 50933001, 84888335, 254665005]

約数ペア:

[(1, 254665005), (3, 84888335), (5, 50933001), (7, 36380715), (15, 16977667), (21, 12126905), (35, 7276143), (49, 5197245), (105, 2425381), (147, 1732415), (245, 1039449), (421, 604905), (735, 346483), (823, 309435), (1263, 201635), (2105, 120981), (2469, 103145), (2947, 86415), (4115, 61887), (5761, 44205), (6315, 40327), (8841, 28805), (12345, 20629), (14735, 17283)]