20757100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2281}}^1$

素因数の和:2315

約数の個数: 72

約数和(自身を含む): 55461728

約数和(自身を除く): 34704628

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2275, 2281, 4550, 4562, 9100, 9124, 11405, 15967, 22810, 29653, 31934, 45620, 57025, 59306, 63868, 79835, 114050, 118612, 148265, 159670, 207571, 228100, 296530, 319340, 399175, 415142, 593060, 741325, 798350, 830284, 1037855, 1482650, 1596700, 2075710, 2965300, 4151420, 5189275, 10378550, 20757100]

約数ペア:

[(1, 20757100), (2, 10378550), (4, 5189275), (5, 4151420), (7, 2965300), (10, 2075710), (13, 1596700), (14, 1482650), (20, 1037855), (25, 830284), (26, 798350), (28, 741325), (35, 593060), (50, 415142), (52, 399175), (65, 319340), (70, 296530), (91, 228100), (100, 207571), (130, 159670), (140, 148265), (175, 118612), (182, 114050), (260, 79835), (325, 63868), (350, 59306), (364, 57025), (455, 45620), (650, 31934), (700, 29653), (910, 22810), (1300, 15967), (1820, 11405), (2275, 9124), (2281, 9100), (4550, 4562)]