20161145800

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1419799}}^1$

素因数の和:1419886

約数の個数: 48

約数和(自身を含む): 47534904000

約数和(自身を除く): 27373758200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1420, 1775, 2840, 3550, 7100, 14200, 1419799, 2839598, 5679196, 7098995, 11358392, 14197990, 28395980, 35494975, 56791960, 70989950, 100805729, 141979900, 201611458, 283959800, 403222916, 504028645, 806445832, 1008057290, 2016114580, 2520143225, 4032229160, 5040286450, 10080572900, 20161145800]

約数ペア:

[(1, 20161145800), (2, 10080572900), (4, 5040286450), (5, 4032229160), (8, 2520143225), (10, 2016114580), (20, 1008057290), (25, 806445832), (40, 504028645), (50, 403222916), (71, 283959800), (100, 201611458), (142, 141979900), (200, 100805729), (284, 70989950), (355, 56791960), (568, 35494975), (710, 28395980), (1420, 14197990), (1775, 11358392), (2840, 7098995), (3550, 5679196), (7100, 2839598), (14200, 1419799)]