2154551800

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{151729}}^1$

素因数の和:151816

約数の個数: 48

約数和(自身を含む): 5079920400

約数和(自身を除く): 2925368600

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, 151729, 303458, 606916, 758645, 1213832, 1517290, 3034580, 3793225, 6069160, 7586450, 10772759, 15172900, 21545518, 30345800, 43091036, 53863795, 86182072, 107727590, 215455180, 269318975, 430910360, 538637950, 1077275900, 2154551800]

約数ペア:

[(1, 2154551800), (2, 1077275900), (4, 538637950), (5, 430910360), (8, 269318975), (10, 215455180), (20, 107727590), (25, 86182072), (40, 53863795), (50, 43091036), (71, 30345800), (100, 21545518), (142, 15172900), (200, 10772759), (284, 7586450), (355, 6069160), (568, 3793225), (710, 3034580), (1420, 1517290), (1775, 1213832), (2840, 758645), (3550, 606916), (7100, 303458), (14200, 151729)]