12951800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{2089}}^1$

素因数の和:2136

約数の個数: 48

約数和(自身を含む): 31099200

約数和(自身を除く): 18147400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 2089, 3100, 4178, 6200, 8356, 10445, 16712, 20890, 41780, 52225, 64759, 83560, 104450, 129518, 208900, 259036, 323795, 417800, 518072, 647590, 1295180, 1618975, 2590360, 3237950, 6475900, 12951800]

約数ペア:

[(1, 12951800), (2, 6475900), (4, 3237950), (5, 2590360), (8, 1618975), (10, 1295180), (20, 647590), (25, 518072), (31, 417800), (40, 323795), (50, 259036), (62, 208900), (100, 129518), (124, 104450), (155, 83560), (200, 64759), (248, 52225), (310, 41780), (620, 20890), (775, 16712), (1240, 10445), (1550, 8356), (2089, 6200), (3100, 4178)]