1990332015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{36383}}^1$

素因数の和:36919

約数の個数: 32

約数和(自身を含む): 3646550016

約数和(自身を除く): 1656218001

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 521, 1563, 2605, 3647, 7815, 10941, 18235, 36383, 54705, 109149, 181915, 254681, 545745, 764043, 1273405, 3820215, 18955543, 56866629, 94777715, 132688801, 284333145, 398066403, 663444005, 1990332015]

約数ペア:

[(1, 1990332015), (3, 663444005), (5, 398066403), (7, 284333145), (15, 132688801), (21, 94777715), (35, 56866629), (105, 18955543), (521, 3820215), (1563, 1273405), (2605, 764043), (3647, 545745), (7815, 254681), (10941, 181915), (18235, 109149), (36383, 54705)]