18935020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3833}}^1$

素因数の和:3874

約数の個数: 48

約数和(自身を含む): 45087840

約数和(自身を除く): 26152820

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 3833, 4940, 7666, 15332, 19165, 38330, 49829, 72827, 76660, 99658, 145654, 199316, 249145, 291308, 364135, 498290, 728270, 946751, 996580, 1456540, 1893502, 3787004, 4733755, 9467510, 18935020]

約数ペア:

[(1, 18935020), (2, 9467510), (4, 4733755), (5, 3787004), (10, 1893502), (13, 1456540), (19, 996580), (20, 946751), (26, 728270), (38, 498290), (52, 364135), (65, 291308), (76, 249145), (95, 199316), (130, 145654), (190, 99658), (247, 76660), (260, 72827), (380, 49829), (494, 38330), (988, 19165), (1235, 15332), (2470, 7666), (3833, 4940)]