86784804520

素因数分解:

$2^3\times 5^1\times {\mathrm{2131}}^1\times {\mathrm{1018123}}^1$

素因数の和:1020265

約数の個数: 32

約数和(自身を含む): 195357633120

約数和(自身を除く): 108572828600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2131, 4262, 8524, 10655, 17048, 21310, 42620, 85240, 1018123, 2036246, 4072492, 5090615, 8144984, 10181230, 20362460, 40724920, 2169620113, 4339240226, 8678480452, 10848100565, 17356960904, 21696201130, 43392402260, 86784804520]

約数ペア:

[(1, 86784804520), (2, 43392402260), (4, 21696201130), (5, 17356960904), (8, 10848100565), (10, 8678480452), (20, 4339240226), (40, 2169620113), (2131, 40724920), (4262, 20362460), (8524, 10181230), (10655, 8144984), (17048, 5090615), (21310, 4072492), (42620, 2036246), (85240, 1018123)]