86707840

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2221}}^1$

素因数の和:2301

約数の個数: 64

約数和(自身を含む): 210778920

約数和(自身を除く): 124071080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 610, 640, 976, 1220, 1952, 2221, 2440, 3904, 4442, 4880, 7808, 8884, 9760, 11105, 17768, 19520, 22210, 35536, 39040, 44420, 71072, 88840, 135481, 142144, 177680, 270962, 284288, 355360, 541924, 677405, 710720, 1083848, 1354810, 1421440, 2167696, 2709620, 4335392, 5419240, 8670784, 10838480, 17341568, 21676960, 43353920, 86707840]

約数ペア:

[(1, 86707840), (2, 43353920), (4, 21676960), (5, 17341568), (8, 10838480), (10, 8670784), (16, 5419240), (20, 4335392), (32, 2709620), (40, 2167696), (61, 1421440), (64, 1354810), (80, 1083848), (122, 710720), (128, 677405), (160, 541924), (244, 355360), (305, 284288), (320, 270962), (488, 177680), (610, 142144), (640, 135481), (976, 88840), (1220, 71072), (1952, 44420), (2221, 39040), (2440, 35536), (3904, 22210), (4442, 19520), (4880, 17768), (7808, 11105), (8884, 9760)]