20298420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4903}}^1$

素因数の和:4941

約数の個数: 72

約数和(自身を含む): 64262016

約数和(自身を除く): 43963596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 4903, 9806, 14709, 19612, 24515, 29418, 44127, 49030, 58836, 73545, 88254, 98060, 112769, 147090, 176508, 220635, 225538, 294180, 338307, 441270, 451076, 563845, 676614, 882540, 1014921, 1127690, 1353228, 1691535, 2029842, 2255380, 3383070, 4059684, 5074605, 6766140, 10149210, 20298420]

約数ペア:

[(1, 20298420), (2, 10149210), (3, 6766140), (4, 5074605), (5, 4059684), (6, 3383070), (9, 2255380), (10, 2029842), (12, 1691535), (15, 1353228), (18, 1127690), (20, 1014921), (23, 882540), (30, 676614), (36, 563845), (45, 451076), (46, 441270), (60, 338307), (69, 294180), (90, 225538), (92, 220635), (115, 176508), (138, 147090), (180, 112769), (207, 98060), (230, 88254), (276, 73545), (345, 58836), (414, 49030), (460, 44127), (690, 29418), (828, 24515), (1035, 19612), (1380, 14709), (2070, 9806), (4140, 4903)]