28745486

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 55157760

約数和(自身を除く): 26412274

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 121, 142, 154, 239, 242, 478, 497, 781, 847, 994, 1562, 1673, 1694, 2629, 3346, 5258, 5467, 8591, 10934, 16969, 17182, 18403, 28919, 33938, 36806, 57838, 60137, 118783, 120274, 186659, 202433, 237566, 373318, 404866, 1306613, 2053249, 2613226, 4106498, 14372743, 28745486]

約数ペア:

[(1, 28745486), (2, 14372743), (7, 4106498), (11, 2613226), (14, 2053249), (22, 1306613), (71, 404866), (77, 373318), (121, 237566), (142, 202433), (154, 186659), (239, 120274), (242, 118783), (478, 60137), (497, 57838), (781, 36806), (847, 33938), (994, 28919), (1562, 18403), (1673, 17182), (1694, 16969), (2629, 10934), (3346, 8591), (5258, 5467)]