1977390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 5211648

約数和(自身を除く): 3234258

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 127, 173, 254, 346, 381, 519, 635, 762, 865, 1038, 1143, 1270, 1557, 1730, 1905, 2286, 2595, 3114, 3810, 5190, 5715, 7785, 11430, 15570, 21971, 43942, 65913, 109855, 131826, 197739, 219710, 329565, 395478, 659130, 988695, 1977390]

約数ペア:

[(1, 1977390), (2, 988695), (3, 659130), (5, 395478), (6, 329565), (9, 219710), (10, 197739), (15, 131826), (18, 109855), (30, 65913), (45, 43942), (90, 21971), (127, 15570), (173, 11430), (254, 7785), (346, 5715), (381, 5190), (519, 3810), (635, 3114), (762, 2595), (865, 2286), (1038, 1905), (1143, 1730), (1270, 1557)]