2139020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 5103840

約数和(自身を除く): 2964820

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 433, 494, 866, 988, 1235, 1732, 2165, 2470, 4330, 4940, 5629, 8227, 8660, 11258, 16454, 22516, 28145, 32908, 41135, 56290, 82270, 106951, 112580, 164540, 213902, 427804, 534755, 1069510, 2139020]

約数ペア:

[(1, 2139020), (2, 1069510), (4, 534755), (5, 427804), (10, 213902), (13, 164540), (19, 112580), (20, 106951), (26, 82270), (38, 56290), (52, 41135), (65, 32908), (76, 28145), (95, 22516), (130, 16454), (190, 11258), (247, 8660), (260, 8227), (380, 5629), (433, 4940), (494, 4330), (866, 2470), (988, 2165), (1235, 1732)]